Multiple Choice

Write an algebraic expression for the following word phrase: the quotient of r and 12.
(1 point)
Responses

r • 12
r • 12

r + 12
r + 12

r ÷ 12
r ÷ 12

r – 12

15 answers

r ÷ 12
Write a word phrase for the algebraic expression 3x - 7.
(1 point)
Responses

the difference of three times a number x and seven
the difference of three times a number x and seven

the difference of seven and three times a number x
the difference of seven and three times a number x

three times a number x fewer than seven
three times a number x fewer than seven

the quotient of three times a number x and seven
the difference of three times a number x and seven
Simplify the expression: 42 + 8 ÷ 2.
(1 point)
Responses

12
12

20
20

8
8

16
16
Find the square root of 25.
(1 point)
Responses

125
125

5
5

10
10

0.05
5
Find the square root of 0.81.
(1 point)
Responses

0.9
0.9

9
9

81
81

0.09
0.9
Name the subset(s) of real numbers to which the number zero belongs. Choose all that apply.

(1 point)
Responses

irrational numbers
irrational numbers

integers
integers

whole numbers
whole numbers

natural numbers
integers
whole numbers
natural numbers
it only two
integers
whole numbers
Note: Your teacher will grade your response to ensure that you receive proper credit for your answer.
The cost of a telephone call is $0.75 + $0.25 times the number of minutes. Write an algebraic expression that models the cost of a telephone call that lasts t minutes.
The algebraic expression that models the cost of a telephone call that lasts t minutes is: 0.75 + 0.25t