please only submit a response if it will include all four question's solutions. thanks.

1. Calculate the IRR for the following project with the following cash flows: an initial outflow of $15,220 followed by inflows of $5,000, $6,000, and $6,500 at one-year intervals. a. 9% b. 8% c. 7% d. 6% 2. Calculate the IRR for the following project with the following cash flows: An initial outflow of $47,104 followed by inflows of $16,000, $17,000, and 18,000 at one-year intervals. I a. 9% b. -9% c. 4% d. 2% a 3. Calculate the NPV at a cost of capital of 9% and the IRR for a project with an initial outlay of $69,724 and an inflow of $15,000 followed by four consecutive inflows of $17,000 at one-year intervals. a. -$5,437.29; 6% b. $5,437.29; 4% c. $5,437.29: 4.2% d. -$5,427.29: 3.39% 4. Calculate the NPV at a cost of capital of 9% and the IRR for a project with an initial outlay of $25,424 followed by two zero cash flow years and then four years of inflows at $10,500. I a. $3,239.70; 4% b. -$3.239.70; 6% c. $3,207.98: 9% d. $3,207.98; 12%