What is the mistake of the question?

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73