Originally Posted by

**bigmansouf** Question: A market trader sells radios. She finds the number of radios she sell each week depends on the profit she makes per radio.

she uses a formula to estimate the approximate number she will sell each week. It is

N= 60-6p

where N is the number of radios sold per week and £p is the profit per radio.

(a) Write an expression, in terms of p, for the total profit per week from these radios.

the answer in the books says p(60-6p)

but can some please explain how thank you