John borrowed $80 from his sister, Joan. He agreed to pay her back at a rate of $6 a week. Create a function, P, that gives the amount of money that John still owes Joan after w weeks

6p=80

Step-by-step explanation:

This is the first half of the anwser

P = 80 - 6w

Step-by-step explanation:

Initial amount = $80

Payment each week = $6

Required function:

P = 80 - 6w

Time required to pay all money. At this time P = 0

0 = 80 - 6w

6w = 80

w = 80/6

w = 13.33

Since w > 13, John needs 14 weeks

Step-by-step explanation: