Ineed answers to all these questions “find the measure of each numbered angle”

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

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

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120