A senior citizen gets a part-time job at a fast-food restaurant. She earns $8 per hour for each hour she works, and she works exactly 25 hours per week. Thus, her total pretax weekly income is $200. Her total income tax assessment each week is $40, but she has determined that she is assessed $3 in taxes for the final hour she works each week.

a. What is this person’s average tax rate each week?

b. What is the marginal tax rate for the last hour she works each week?

8. problems and applications q8there are four consumers willing to pay the following amounts for haircuts, and there are four haircutting businesses with the following costs: consumers' willingness to payyvette: $35cho: $15sean: $45bob: $25firms' costsfirm a: $40firm b: $20firm c: $10firm d: $30each firm has the capacity to produce only one haircut.for should be given.which businesses should cut hair? check all that apply.firm afirm bfirm cfirm dwhich consumers should have their hair cut? check all that apply.bobchoseanyvettethe maximum possible total surplus is