Pleas helpp

(\frac{1}{4})^{2x+4} * (\frac{1}{64})^{-x+1} =1

(1/4)^2x+4*(1/64)^-x+1=1

I need help with this problem with the steps cuz i dont know how to get it

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?