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1 Which of these correctly shows this number written in scientific notation?
0.0000909
0.909 × 10-5
0.909 × 10-3
9.09 × 10-4
9.09 × 10-5
2 Write this number in scientific notation.
0.000036
3.6 × 10-5
3.6 × 106
3.6 × 105
3.6 × 107
3 Simplify the expression below.
232 × 22
184
533
2,116
6,112
4 What are the prime factors of 195?
3, 5, 7
3, 5, 13
5, 7
5, 13
5 What are the prime factors of 363?
3, 7
3, 11
3, 13
7, 11
6 Find the quotient.
(2x2 - 4x) ÷ (-2x)-x + 4
x - 4
x - 2
-x + 2
7 Simplify this expression using the laws of exponents.
1
4xy3 (12x2 - 20xy + 4y2)
3x3y3 - 5xy + y2
3x3y3 - 5x2y + y2
3x3y3 - 5x2y4 + xy5
12x2y3 - 5x2y4 + xy5
8 Simplify.
-2w(3x - 2y)-6wx - 4wy
-6wx - 2y
-6wx + 4wy
6wx - 2y
9 Simplify the expression below.
ab
6 ÷
b
ab2
6
ab
6
a2
6
ab
3
10
What is the value of the function f(x) = -3x2 - 2x + 4 when x = 3?
-29
-20
16
25
11
What is the range of the function f(x) = 4x - 3 given the domain D = {0, 1, 2, 3}?
R = {-1, 0, 5, 10}
R = {-1, 0, 5, 9}
R = (-9, -5, 1, 3}
R = {-3, 1, 5, 9}
12 Divide:
14x5 - 6x3 + 14x2
2x
7x4 - 3x3 + 7
7x4 - 3x2 + 7
7x4 - 3x2 + 7x
7x5 - 6x2 + 7x
13
Multiply: (-a3b2)(-a2b2)(-ab4)
-a5b8
-a5b16
-a6b8
-a6b16
14
Solve the inequality below.
2x - 1 < -5x > -3
x < -3
x > -2
x < -2
15
Solve the inequality below.
-9x -36
x -4
x -4
x 4
x 4
16
Solve the inequality below.
3(x - 4) 4x + 7
x -11
x -19
x -25
7
x -5
17 Divide:
26xy - 39y
13y
2xy2 - 3y2
2x - 3
2x - 3y
2y - 3x
18
Identify the equation of line that passes through (1, 2) and has slope of -5.
y = 7x - 5
y = -5x - 7
y = -5x + 7
y = -5x + 2
19
Multiply.
(n + 7)(n - 5)
n2 + 2n - 35
n2 - 35
n2 - 2n + 35
n2 - 2n - 35
20
Find the sum.
(3a2 + 2ab + 2b) + (5a2 - 3ab + 9)
8a2 - 2ab + 11b
8a2 - ab + 11b
8a2 - ab + 2b + 9
8a2 - 2ab + 2b + 9
21
Jake used an employment agency to find him a new job. Jake has agreed to pay the agency a commission equal to 4% of his first year's salary.
If the agency finds Jake a job that pays $7,500 a month, what amount of commission will Jake pay?
$300
$3,000
$3,600
$4,800
22
Ms. Ling's history exam contained 20 questions worth a total of 100 points. There were short answer questions worth 3 points each and a few short essay questions worth 11 points each.
Which system of equations correctly represents this situation?x + y = 203x + 11y = 100
x + y = 1003x + 11y = 20
x + 20 = 100y + 3 = 11
x + y = 1120x + 100y = 3
23
The ratio of wins to losses for Deerlake Middle School's football team is 3:2.
If Deerlake won 9 football games, how many games did they play in all?
12
13
15
17
24
Last year the snowfall in Ridgefield County was 7.20 inches. This year the snowfall was 2.88 inches.
By what percentage did the snowfall decrease from last year to this year?
6%
50%
60%
166%
25
Identify the equation that represents the following situation:
Three times the sum of a number and one is equal to four times the number.
3n + 1 = 4n
3(n + 1) = 4n - 3n
3(n + 1) = 4n
3(n - 1) = 4n
26
Amelia gets 4 points for each correct answer on her science quizzes, and she loses 1 point for each wrong answer. On her quiz last week, Amelia earned 50 points and answered 25 questions.
Which system of equations correctly represents this situation?
4c - w = 50c + w = 20
4w - c = 20c + w = 50
4c - w = 50c + w = 25
4w - 4c = 50c + w = 25
27
Identify the equation that represents this situation.
Eleven more than twice a number is one less than four times the number.
11 + 2n = 1 - 4n
2n - 11 = 1 - 4n
2n + 11 = 4n - 1
11 + 4n = 2n - 1
28
Andrew paid an agency 10% of his first year's rent for finding him an apartment. His rent is $1,800 per month.
What is the amount of the commission that Andrew paid the agency?
$216
$900
$1,800
$2,160
29
Kelly earns a 7% commission on the total amount of her sales. This year, she had $210,000 in sales.
How much commission did Kelly earn?
$14,700
$30,000
$147,000
$195,300
30
Joe's annual salary last year was $20,000. Joe's annual salary this year is $25,000.
By what percentage did Joe's salary increase this year?
15%
20%
25%
50%
31
What is -75 + 37?
-48
-38
48
102
32
Jackson Middle School has 170 students, and 68 of them take Spanish.
What percentage of the students take Spanish?
2.5%
33.3%
40%
60%
33
What is -9 - (-21)?
-30
-12
12
30
34
What is -12 ÷ (-16)?
-0.8
-0.75
0.75
0.8
35
A bag of Wonderdrops candy contains 60 pieces, and 12 pieces in each bag are red.
What percentage of the pieces are red?
5%
12%
20%
25%
36
This table shows population data for ten South American countries, according to a 1990 census.
CountryPopulation(millions)
Argentina 32
Bolivia 7
Brazil 150
Chile 13
Columbia 33
Ecuador 10
Paraguay 5
Peru 22
Uruguay 3
Venezuela 19
What is the median of this data?
16 million
19 million
22 million
29 million
37
This table shows the number of advertising contracts a newspaper representative sold over an eight-week period.