Question 1

1.  Find 6(−3)

Accepted Answer

-18

Answer

9

Answer

18

Answer

-9

Question 2

2.  Find (−2)(−8)

Accepted Answer

16

Answer

10

Answer

-10

Answer

-16

Question 3

3.   Use the Distributive Property to write the expression as an equivalent numeric expression. Then evaluate the expression.       3.5(8 − 2)

Accepted Answer

3.5 · 8 − 3.5 · 2;      21

Answer

3.5 · 6;      21

Answer

3.5 · 8 −2;    26

Answer

3.5 · 8 + 3.5 · 2;       35

Question 4

4.  Identify the coefficients and constants in the expression. 2x − y + 5x

Accepted Answer

coefficients: 2, –1, 5 constants: none

Answer

coefficients: 2 and 5 constants: 1

Answer

coefficients: 2, 1, 5 constants: none

Answer

coefficients: 2 and 5 constants: –1

Question 5

5.  Simplify    6c − 2d + 9d + 10c

Accepted Answer

15c + 8d

Answer

16c − 11d

Answer

4c + 19d

Answer

16c + 7d

Question 6

6.  Find the sum (5x − 2) + (x + 8)

Accepted Answer

6x + 6

Answer

6x − 16

Answer

6x + 10

Answer

6x - 6

Question 7

7.  Find the sum (6x + 4) + (−3x + 1)

Accepted Answer

3x + 5

Answer

−3x + 5

Answer

9x + 5

Answer

3x + 4

Question 8

8.  Find the difference (−6x − 2) − (3x + 8)

Accepted Answer

-9x - 10

Answer

−9x + 6

Answer

−9x − 6

Answer

−3x − 10

Question 9

9.   The expression (8x + 4) inches represents the perimeter of a rectangle whose width is (3x − 4) inches. Find the length of the rectangle if x = 2.

Accepted Answer

8 in.

Answer

7 in.

Answer

9  in.

Answer

10 in.

Question 10

10.   Find the GCF  18a, 24ab

Accepted Answer

6a

Answer

6ab

Answer

18a

Answer

12a

Question 11

11.   Find the GCF  10rs, 35rst

Accepted Answer

5rs

Answer

5r

Answer

10rs

Answer

5rst

Question 12

12.  Simplify  -2(x -10)

Accepted Answer

-2x + 10

Answer

8x

Answer

-2x - 10

Answer

12x

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