this is one question.

just separat it with q3&q4

Question 3 You are about to buy a home. You know about tax consequences, and you know how to use Excel. The specifications on your nice, new home loan are: Purchase Price: 350000 Down Payment Percent: 20% APR: 4.679% Years: 25 Payments / Year: 12 What are the monthly payments? TWO decimal places Question 4 For the same home loan in Question 3, Because you bought the home on the last day of August, your first payment is on the last day of September So in the first year, you will make 4 payments (September, October, November, December), Months (or rather Payments) 1-4. You want to know the tax impact of this purchase because home mortgage interest is deductible on your federal and state income taxes, You specifically want to know what your total Year 4 interest payments will be. (The sum of your interest of your monthly payments for a given year.) You know you need to figure out the first payment month and the last payment month of Year 4 to do this. Assume that Year 1's payments were the first 4. What are your cumulative interest payments in Year 4? TWO decimal places Hints: You have to negate the function, not the PV; This is an End of Year computation