If p(x) = x²+4x-3,then evaluate p(2)-p(-1)+p(1÷2)

Agrain trader buys the following amounts from three suppliers: 3,200 pounds, 5,100 pounds and 700 pounds. what is the total weight of his purchase?

The area of a rectangle is 54x^9y^8 square yards.if the length of the rectangle is 6x^3y^4 yards,which expression represents the width of the rectangle in yards

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?