Answer:
Option A. is correct.
Step-by-step explanation:
Given: A cell phone company recently noticed a
sales decrease in the month of July compared to June such that
represent June's sales.
Also,
represents July's sales.
To find: equation that can be used to determine the sales in July
Solution:
June's sales 
Decrease in sales 
So,
July's sales 
Also,
July's sales 
Therefore,

So, option A. is correct.
Answer:

(-3,
) is the center of the circle
Step-by-step explanation:
You use the midpoint of the two point given to us.
Hope this helped
Parallel lines have the same slope. Hence, using the base equation of y=mx+b, plug in the given value for y and the given value for x into the equation y=-2x+b to solve for b:
-7=-2(-5)+b
-7=10+b
b=-17
Hence the equation would be y=-2x-17<span />