We need to know the expression and the total cost

Find the balance at the end of 4 years if 1000 is deposited at the rate of

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

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?