Answer:
A tax rate of 10.71% should make both both indifferent for investors.
Explanation:
the municipal bonds are income-tax free so we should solve for the tax rate which makes both bonds equaly attractive.
0.075 = after-tax rate
0.084 = pre-tax rate

A tax rate of 10.71% should make both both indifferent for investors.
The answer to fill in the blank would be C) Self-evaluation.
Answer: decreasing money supply; less; decreases.
Explanation:
When the Federal Reserve wants to increase its target interest rate by 50 basis points, this can be done if the Fed reduces the money supply that is in circulation.
This will in turn, lead to a new equilibrium rate and there will also be a decrease in money in the financial system as there'll be a reduction in the quantity of money demanded.