Tc=10+2q-q^2+q^3 find the optimal level of output that maximize profit

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =