Can any one help me on this will give you crown and points if needed

Jocelyn was able to get a great interest rate on her house. She financed $150,000 for 15 years with an interest rate of 2.75%.

How much will she pay in interest over 15 years? (just put the numerical value, no $ sign) it is 61,875

By the time she pays off her mortgage, how much total will she have spent for her house? (just put the numerical value, no $ sign)

show work plz