Help with math (REALLY HARD FOR YOU GUYS!!)

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

if the angular bisector of an triangle bisects the opposite side, prove that the other two sides are equal.

(f+g)(x) = 3^x+10x+4x-2

      =3^x +14x-2

choice b

(2,0) and (-3,0)

step-by-step explanation: