can someone check my work? I am confused because it says the irr later in the question but idk if its supposed to be the same as part a and I just did it wrong.

You work for an outdoor play structure manufacturing company and are trying to decide between the following two projects: (Click on the following icon spreadsheet.) You can undertake only one project. If your cost of capital is 5%, use the incremental IRR rule to make the correct decision. The incremental IRR is \%. (Round to two decimal places.) With the incremental IRR at 4.80% and the cost of capital of 5%, you should undertake the (Select from the drop-down menu.)