12. John borrowed $80 from his sister, Joan. He agreed to pay her back at a rate of $6 per

week. Create a function, P, that gives the amount of money that john still owes Joan after

w weeks.

12 (b) John told Joan that he will have paid her back all of the money, after making

payments for 13 weeks.. Explain why John is incorrect?

Answer:Step-by-step explanation:Required function:Time required to pay all money. At this time P = 0

Since w > 13, John needs 14 weeks