

1. 
Find the solution of 72 + z = 84 if the value of z can be selected from the set {4, 8, 12, 16}. 


A. 
12 
B. 
8 


C. 
16 
D. 
4 


Hint 


2. 
Solve 3x = 18. 


A. 
6 
B. 
7 


C. 
21 
D. 
15 


Hint 


3. 
The perimeter of a square is 4 times the length of a side. Use the equation P = 4s to find the perimeter of a square whose side has a length of 6 inches. 


A. 
12 in. 
B. 
24 in. 


C. 
36 in. 
D. 
10 in. 


Hint 


4. 
On a full flight from San Antonio to Los Angeles 28 people sat in first class. If 130 were on the flight, how many people sat in coach? 


A. 
158 
B. 
108 


C. 
102 
D. 
112 


Hint 


5. 
Mrs. Robinson bought each of her two daughters a red, white, and blue striped sweater. Her total came to $33.30. Find an equation that shows how much each sweater cost. Use s to represent of the cost of 1 sweater. 


A. 
= 33.3 
B. 
2 + s = 33.3 


C. 
2s = 33.3 
D. 
s  2 = 33.3 


Hint 


