Answer:
Markung Cost of Equity:
For this you should use the Capital Asset Pricing Model:
Cost of equity = Risk free rate + Beta * (Market return - Risk free rate)
= 5% + 1.50 * (6.5% - 5%)
= 7.25%
Total capital budget:
They will only pick projects with a rate of return that is higher than 12.55%:
= Project W + Project Y + Project Z
= 22,450 + 19,235 + 17,875
= $59,560