Turner Delivery can buy a piece of equipment that is anticipated to provide an 8% return and can be financed at 5% with debt. Later in the year, the firm turns down an opportunity to buy a new machine that would yield a 15% return but would cost 17% t finance through common equity. Assume debt and common equity each represent 50% of the firm's capital structure.

a. Compute the weighted average cost of capital.

b. Which project(s) should be accepted?