$1-$A firm has just ended its calendar year making a sale in the amount of $$150,000$ of merchandise purchased during the year at a total cost of $$112,500.$ Although the firm paid in full for the merchandise during the year, it has yet to collect at year$-$end from the customer. What The net profit and cash flow from this sale for the year $?$

$2-$ When the net present value is negative, the$-$ internal rate of retum is $..$ the cost of capital.The cost of long$-$term debt generally.that of short$-$term debt.

$3-$ afirm with a cost of capital of $13$ percent is evaluating three capital projects. The internal rates of return are as follows:Projects. IRR$1.12\%2.15\%3.13\%$Select one:O a$.$ accept Projects $2$ and $3$ and reject Project $1.*$ b$.$ accept Project $1$ and reject Projects $2$ and $3.*$ c$.$ accept Project $2$ and reject Projects $1$ and $3.*$ d$.$ reject all the projects