last option is 17% for first question

The Hanna Company uses straight-line depreciation and is considering a capital expenditure for which the following relevant cash flow data have been estimated: Estimated useful life 3 years Initial Investment $450,000 Cash savings Year 1 $210,000 Cash savings Year 2 $150,000 Cash savings Year 3 $225,000 Residual value after 3 years $0 The accounting rate of return is closest to 20% 39% 30 Sales Revenues Variable Expenses Fived expenses Operating Income ACTUAL 465.000 280,000 165.000 20.000 FLEXIBLE BUDGET 450,000 270,000 170.000 10,000 MASTER BUDGET 500,000 300,000 170.000 30,000 Barlow investigates flexible budget variances for revenues or expenses if they are greater than 10% of the flexible budget. Which flexible budget variance should be investigated? Sales revenues Variable expenses Fixed expenses None of these