

1. 
Evaluate 3x + 2y if x = 3 and y = 7. 


A. 
27 
B. 
5 


C. 
23 
D. 
105 


Hint 


2. 
Evaluate if a = 9, b = 6 and c = 3. 


A. 
5 
B. 
15 


C. 
9 
D. 
11 


Hint 


3. 
The equation where d represents the distance in miles and t is the number of seconds between seeing lightening and hearing thunder, tells how far away a thunderstorm is. How far is it to a thunderstorm if you count 15 seconds between seeing the lightening and hearing the thunder? 


A. 
1 mile 
B. 
3 miles 


C. 
10 miles 
D. 
15 miles 


Hint 


4. 
Evaluate x + 5y if x = 12 and y = 9. 


A. 
47 
B. 
153 


C. 
57 
D. 
71 


Hint 


5. 
Evaluate 5k + if k = 3, m = 20, and n. = 5. 


A. 
57 
B. 
19 


C. 
7 
D. 
20 


Hint 


