Which description of the transformation of z on the complex plane gives the product of z=sqrt2(cos(pi/4) +isin (pi/4) and w=sqrt8(cos(pi/4)+isin(pi/4)

What is the solution to the equation below? 3/x-2+6=square root x-2 +8

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?

What expression is equivalent to (84+16)