Answer:
x = 1.2
Step-by-step explanation:
12.50x = 15
12.50/12.50 x = 15/12.50
x = 1.2
(Sorry i dont understand what you mean by percent increase)
Answer:
36
Step-by-step explanation:
You add all of them together which is 9
Then you take the combination of A to C
Which is 9C2
Answer:
See explanation
Step-by-step explanation:
Given the equation 
A. Create the table of values for at least 4 points.
When 

When 

When 

When 

When 

Thus, the table is

B. Use the table of values to graph the line on the coordinate plane. Plot given points and connect them with the straight line (see attached diagram).
Answer:
460
Step-by-step explanation:
115 times 4 is 460, 115+115+115+115= 460.