What is the slope of a line that is perpendicular to a line whose equation is 5y = 10+2x

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

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 3 3/4 lb. of candy costs 20.25 how much would 1lb. of candy cost