Members of a car sharing program pay a fee of $50 per month plus $7.65for every hour they use a car . a members bill was $149.45 last month. how many hours did the customer use a car last month?

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

Select the lengths in centimeters that would form a right triangle

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days