I need homework help! Thank you in advance ! :)

1. After a grueling flight, your plane lands in Tokyo. Starving, you stop at the first sushi bar you see and spend 7,109 Japanese yen. Your currency from an earlier stop in Germany is still in Euros. How many euros did you spend? Assume the yen per dollar exchange rate is 137 and the dollar per euro exchange rate is 1.258.

2. You are considering purchasing a $3 million, 90 day issue of commercial paper with a 4.53% discount yield. Calculate the effective yield, assuming the security is purchased on the issue date and held to maturity:

3. Equipment costs $77,751 Installation costs $ 9,388 Tax rate 31% Change in operating revenues $39,295/year for five years Sold in year six $ 4,640 MACRS 3-year class depreciation (33%, 45%, 15%, 7%) Calculate the incremental operating cash inflow in year one

4. You have purchased a machine for $199,932 and are depreciating it using a five-year MACRS schedule (20%, 32%, 19.2%, 11.52%, 11.52%. 5.76%). You are in a 29% tax bracket and will be able to sell the machine for $50,161 at the end of year four. Calculate your net incremental cash flow from the sale of this machine.