Answer:
1. E. Decrease/ Decrease
The higher taxes on businesses will reduce output because businesses will have less incentive to produce, and therefore, will produce less.
When the Fed conducts an open market sale, it reduces the money supply. This decreases the price level.
2. A. Increase / Increase.
The higher demand for loanable funds due to increased business confidence will also increase the value of the real interest rate.
3. d. 25 percent.
If the excess reserves are $375, then, the required reserves are $125. And $125 is the 25% of $500.