please show step by step(no excel)

Thank you!

You want to purchase a house that costs $300,000. You have $60,000 to put down on it. Because you have good credit score you have been offered a loan of 15 years at 4% or 30 years at 5%. a. How much is your loan? 0. ANSWER: b. What is your monthly principal and interest payment for the 15 -vear loan? o PV= - FV= o I= o N= o Pmt=