Given that the points (-3, 8), (2, 8), (2, -2), and (-3, -2) are vertices of a rectangle, what is the ratio of the rectangle's length to its width?
a) 1: 2
b) 1: 3
c) 2: 1
d) 3: 1

d = 15c

Step-by-step explanation:

Amount Xavier is paid per cell phone plan purchased = $15

d = Total amount Xavier is paid

c = number of cell phone plan he sells

The equation:

Total amount Xavier is paid = Amount Xavier is paid per cell phone plan purchased * number of cell phone plan he sells

d = 15 * c

d = 15c

For instance, If Xavier sell 4 cell phone plan

d = 15c

d = 15(4)

d = 60

Total amount Xavier is paid for selling 4 cell phone plans = $60