Just need help figuring out the parts missing

Hampton Manufacturing estimates that its WACC is 12.5%. The company is considering the following seven investment projects: Project Size IRR $750,000 14.0% 1,250,000 13.5 1,250,000 13.2 1,250,000 13.0 750,000 12.7 750,000 12.3 750,000 12.2 a. Assume that each of these projects is independent and that each is just as risky as the firm's existing assets. Which set of projects should be accepted? Project A accept Project B accept Project C accept Project D accept Project E accept Project F don't accep Project G don't accep What is the firm's optimal capital budget? Write out your answer completely. For example, 13 million should be entered as 13,000,000