Question 11 2 / 2 pts Evaluate the following expression: 3(4 + 9) = ?   Question 12 2 / 2 pts Evaluate the following expression: (5 − 6)1 = ?   Question 13 2 / 2 pts The perimeter of a rectangle is equal to the sum of the lengths of the four sides

Question 11

2 / 2 pts

Evaluate the following expression:
3(4 + 9) = ?

Correct!

Correct Answer

39

Question 12

2 / 2 pts

Evaluate the following expression:
(5 − 6)1 = ?

Correct!

Correct Answer

-1

Question 13

2 / 2 pts

The perimeter of a rectangle is equal to the sum of the lengths of the four sides. If the length of the rectangle is L and the width of the rectangle is W, the perimeter can be written as:
2L + 2W
Suppose the length of a rectangle is L = 4 and its width is W = 7. Substitute these values to find the perimeter of the rectangle.

Correct!

Correct Answer

22

Question 14

2 / 2 pts

Simplify the following expression, given that x = 7:
-7 − -8x = ?

Correct!

Correct Answer

49

Question 15

2 / 2 pts

Simplify the following expression, given that p = 8:
p + 8 = ?

Correct!

Correct Answer

16

Question 16

2 / 2 pts

Simplify the following expression, given that x = -3:
10x + 3 = ?

Correct!

Correct Answer

-27

Question 17

2 / 2 pts

Simplify the following expression, given that k = 6:
6k = ?

Correct!

Correct Answer

36

Question 18

2 / 2 pts

Simplify the following expression, given that b = 15:
10 − b = ?

Correct!

Correct Answer

-5

Question 19

2 / 2 pts

Simplify the following expression:
12g + 9 − 15g − 4
After simplifying, what number is multiplied by the g?

Correct!

Correct Answer

-3

Question 20

2 / 2 pts

Simplify the following expression:
13c − 9c
After simplifying, what number is multiplied by the c?

Correct!

Correct Answer

4