The cost of capital of the firm with the level of debt and equity is 7.36%.
The cost of capital is the rate of return investors would demand for giving a company money for production activities. The weghted average cost of capital formula would be used to determine the firm's cost of capital.
WACC = [weight of equity x cost of equity] + weight of debt x cost of debt x (1 - tax rate)
[(0.4 x 15%)] + [0.6 x 0.65 x 3.49)
6% + 1.36 = 7.36%
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