If 9 is 9% of N, then what does N equal?

How to simply and write the answer n a whole number

Determine the solution for mc001-1.jpeg

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?