The function of c=p+. 07p relates the price of an item p with its cost c after 7% tax and s added. A student has $12.50. What is the cost of the most expensive item he can buy?

If you have $12.50 to spend, what is the cost of the most expensive item that you can buy? ... The sales tax in TN on nonfood items is 7% ... Write a function rule to describe each situation The sellings price s (c) after a 45% markup ... you want to write a program to calculate the total cost of an item that has sales tax added.