

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


A. 
8 
B. 
4 


C. 
12 
D. 
16 


Hint 


2. 
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. 
10 in. 
D. 
36 in. 


Hint 


3. 
Graph the solution of 11 + y = 28 on a number line. 


A. 

B. 



C. 

D. 



Hint 


4. 
Graph the solution of 18 = on a number line. 


A. 

B. 



C. 

D. 



Hint 


5. 
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. 
108 
B. 
112 


C. 
158 
D. 
102 


Hint 


