A fitness center currently has 320 members. Monthly membership fees are $45. The manager of the fitness center has determined that each time the membership fees increase by $5, approximately 10 members leave and go to a different gym. Write an equation that can be used to find the revenue of the fitness center in dollars, y, after x price increases of $5.
help please
A.
y = -50x2 + 2,050x + 14,400
B.
y = -50x2 + 3,425x + 14,400
C.
y = -50x2 + 2,975x + 14,400
D.
y = -50x2 + 1,150x + 14,400