Plss help me on the following look at image

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

Louis wants to carpet the rectangular floor of his basement the basement has an area of 864 square feet the width of the basement is 2/3 its length what is the length of lewis's basement

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a. p.