Profitable Fruitcake?

Question

The revenue R (in dollars) on the sale of x fruitecakes is determined by the formula R= 50x-x^2. The cost C (in dollars) for producing x fruit-cakes is given by the formula C= 2x+40. Fo what values of x is profit positive? (Profit = revenue - cost.)

Answer 1

fruitcake - you can't hardly give away fruitcake much less make a profit on it.