please help! i need to make a chart for my answers with this to indicate the numbers and which project should be taken. Robinson Corporation considers its optimal capital structure to be $60$ percent debt

and $40$ percent common stock. Robinson can borrow unlimited amounts at $12$

percent. The common stock can be issued with a required return of $22\%.$

Robinson has a tax rate of $25$ percent.

Robinson is considering four investment proposals:

When Robinson evaluates a project, they consider the level of risk. If the risk

level is high, Robinson adds a premium of three percent to the WACC. If the risk

level is low, Robinson subtracts one percent.

Required:

a$)$ Determine Robinson's weighted average cost of capital $($WACC$).$

b$)$ Determine Robinson's optimal capital budget.