Height of the trapezoid - 30cm
area of the trapezoid - 1215 (1m+80m=81m/2=40.5x30cm=1215)

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11