I need assistance with these questions in order to add it in my notes (Show Work):

1. Given the cost and revenue equations, (a) find the profit equation, (b) find the value of q that maximizes the profit, (c) find the break-even quantity if possible. R(q) = -2q2 + 30q, C(q) = 10q + 42 2. For the given pair of functions, find (f + 9)(x). (f - 9)(x). (fg)(x), () (x). (@) (x).(f . g)(x) and (g . f)(x) along with their domains. f(x) = vx+1,g(x) = x2 3. Ten years ago, Ann was gifted a bond. If the investment earned an annual interest of 3.2% compounded quarterly for the life of the bond and it is worth $4,805.02 today, how much was the original gifted bond worth