Lin Vu has $$100,000$ in an investment paying $9$ percent taxable interest per annum. Each year Vu incurs $$825$ of expenses relating to

this investment. Compute Vu's annual net cash flow assuming the following:

Required:

a$.$ Vu's marginal tax rate is $10$ percent, and the annual expense is not deductible.

b$.$ Vu's marginal tax rate is $35$ percent, and the annual expense is deductible.

c$.$ Vu's marginal tax rate is $25$ percent, and the annual expense is not deductible.

d$.$ Vu's marginal tax rate is $40$ percent, and only $$500$ of the annual expense is deductible.