Convert x^2 + y^2 - y = 0 to a polar equation. r ^2 = sinθ
r = cosθ
r ^2 = cosθ
r = sinθ

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

The liabilities of cullumber are $99,000. owner’s capital is $143,000; drawings are $96,000; revenues, $467,000; and expenses, $301,000. what is the amount of cullumber company’s total assists?

Me. i can't figure out this question. give an explanation too. .