Which fee could decrease an investor’s return on investment when the investor may not have bought or sold any stock for a significant period of time?

a.

front-end load

b.

inactivity fee

c.

trade commission

d.

transaction fee

Sis less than or equal to 75 (bottom left)

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.