Nadia saved 10% on her cd purchase. if the cd originally cost $24.90, how much did she save ?

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles. i'm desperate.

Which interval for the graphed function contains the local maximum? [–3, –2] [–2, 0] [0, 2] [2, 4]

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why