Q9/10/11/12 Consider the following hypothetical tax schedule, expressed in nominal terms, for the tax year 2020-21. Family income Marginal tax rate $50 000 20 Assuming the CPI is 110 in 2020-21 and 121 in 2021-22, but the government does not adjust the tax schedule for tax year 2021-22, what is the average tax rate in 2021-22 for a household earning $48,000 in 2020-21, assuming their nominal income goes up with inflation? #a. 8.6% b. 7.7% c. 10% d. 15%