Local electronic store is having the end-of-the-year sale. Price on the plasma tv had been decreased by 30%. Now sale price is decreased by another 30%. If x is television's orginal price, sale price can be modeled by:
(x-0.3x)-0.3(x-0.3x)
a) Factor out (x-0.3x) from every term. Then simplify resulting expression.
b) Use simplified expression from part a to reply these questions. With the 30% reduction followed by the 30% reduction, is television selling at 40% of its original price? If not, at what percentage of original price is it selling?