Ms. BK is a self-employed architect who earns $300,000 annual taxable income. For the past several years, her tax rate on this income has been 35 percent. Because of recent tax law changes, Ms. BK's tax rate for next year will decrease to 25 percent.

a. Based on a static forecast, how much less revenue will the government collect from Ms. BK next year?

b. How much less revenue will the government collect from Ms. BK next year if she responds to the rate decrease by working more hours and earning $375,000 taxable income?

c. How much less revenue will the government collect from Ms. BK next year if she responds to the rate decrease by working fewer hours and earning only $275,000 taxable income?