Tax rate

Calculate the TBF for each of the following:
(a) Tax rate of 50%, declining-balance depreciation rate of 20%, and an after-tax ALARR of 9%
(b) Tax rate of 35%, declining-balance depreciation rate of 30%, and an after-tax AIARR of 12%
(c) Tax rate of 55%, declining-balance depreciation rate of 5%, and an after-tax ALARR of 6%