Perimeter of shaded region and area of shaded region

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?

If wxyz is a square, which statements must be true?

What is 140 squared pleas me i am dumb