Which expression simplifys
8m+5z+4

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.