Sam's Fruit Cellar earns a $0.40 profit for each apple that it sells and a $0.40 profit for each banana that it sells. Which expression(s) show(s) Sam's total profits from selling apples (a) and bananas (b)? Select all that apply.
*00.40(ab)
*0 0.80(a + b)
*0.80(ab)
*0.40a+ 0.40b
*0.40(a + b)
*0.40+ a +0.40 + b