5) Refer to Figure 1. What formula should be entered in cell E4 to compute total protability? A) =SUMPRODUCT(B5:C5,B2:C2) B) =SUM(B3:C3) C) =B2*B5 + C2*C5 D) =SUMPRODUCT(BS :C5,E8:E l 0) E) =BB*B5 + C3*C5 6) Refer to Figure 1. Which cell(s) are the Changing Cells as designated by "Solver"? A) E4 B) B2:C2 C) B3:C3 D) D8:D10 E) B5:C5 7) The constraint for a given resource is given by the following equation: 2X1 + 3X2 5 20 If X1 = 5 and X2 = 3, how many units of this resource are unused? A) 20 B) 19 C) 1 D) 0 E) 17