Ming says that 60% /40% is equal to the unit rate of 1.5 is she correct?Explain.

In the diagram of circle a what is m

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

If the discriminant if a quadratic equation is 4 which statement describes the roots?