Question 1

1. Which of the following is an expression?

Accepted Answer

6n − 7

Answer

a^2+ b^2 = 40

Answer

2(m + 8) = 24

Answer

x + y = 20

Question 2

2. Which of the following is an equation?

Accepted Answer

11 − a = 5

Answer

2n + 8

Answer

5 (x + y)

Answer

x ^2 + 7 − n

Question 3

3. Which expression is represented by the statement “the ratio of three and twice x”?

Accepted Answer

3 /2x

Answer

3x ^2

Answer

3 + 2x

Answer

2x /3,

Question 4

4. What is the correct algebraic equation of “thirty decreased by twice a number is four”?

Accepted Answer

30 − 2n = 4

Answer

30 + 2n = 4

Answer

30x2n = 4

Answer

30 ÷ 2n = 4

Question 5

5. What is the correct mathematical phrase for 9z − 5?

Accepted Answer

the product of 9 and z decreased by 5

Answer

five less than the product of nine

Answer

five less than a number z

Answer

the product of nine and five

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