Standard deduction on federal income tax return for single taxpayers is $5700. fletcher ,an unmarried custodian, paid $3980 in state income tax and $2460 in mortgage interest last year. how should he file her taxes?

Shannon mary and john earn a weekly allowance ahannon earns the amount that is 2/3 of what john earns mary earns an amount that is 1 2/3 of what johns earns 20 dollars a week who eaens the greatest allowance and who earns the least