Your division is considering two investment projects, each of which requires an up$-$front

NPV expenditure of $$15$ million. You estimate that the investments will produce the following

net cash flows:

Project A: Year $1$: $5,000,000$ Year $2$: $10,000,000$ Year $3$: $20,000,000$

Project B: Year $1$: $20,000,000$ Year $2$: $10,000,000$ Year $3$: $6,000,000$

a$.$ What are the two projects' net present values, assuming the cost of capital is $5\%?$

$10\%?15\%?$