

1. 
Evaluate if a = 9, b = 6 and c = 3. 


A. 
9 
B. 
5 


C. 
15 
D. 
11 


Hint 


2. 
Evaluate b^{3} + 6 if b = 2. 


A. 
15 
B. 
14 


C. 
512 
D. 
12 


Hint 


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


A. 
19 
B. 
20 


C. 
7 
D. 
57 


Hint 


4. 
In physics, the number measures the force of gravity between two objects when a and b each stand for the mass one of the objects and d stands for the distance between them. Find the force of gravity when a = 5, b = 8, and d = 2. 


A. 
20 
B. 
5 


C. 
10 
D. 
40 


Hint 


5. 
Evaluate j  k if j = 10 and k = 2. 


A. 
20 
B. 
5 


C. 
12 
D. 
8 


Hint 


