Answer:c 
Explanation: well 79.95-20%=63.96
        
             
        
        
        
Answer:
The first two wars were long—23 years and 17 years, separated by an interval of 23 years. The third war lasted nearly three years. It started 52 years after the end of the second war. All three wars were won by Rome, which subsequently emerged as the greatest military power in the Mediterranean Sea.
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Option b.
Step-by-step explanation:
We can easily solve this problem by using a graphing calculator or plotting tool.
The function is
h(t) = cos (t +1)
Please, see attached picture below.
By looking at the picture, we can tell that the amplitude is equal to 1
The function has a period of T = 2π
We can see there is no vertical shift.
It has a phase shift of +1. (Which moves the graph to the left)
Answer:
Option b.
 
        
             
        
        
        
Answer:
y=3x+2
Step-by-step explanation:
For a the equation is y=3x+2 because he makes 3 every hour (3x) and he already has 2 (+2). 
For the graph you replace x with any number and solve. Plot the point. 
Then you do it again but with a different x.
Finally you draw a straight line trough the 2 points.
 
        
             
        
        
        
Answer:
xy represents the diameter