bob and betheny buy a new double wide for $40000. they pay 10% down and finance the rest at 5.5% APR for 15 years. monthly payment? total paid for

bob and betheny buy a new double wide for $40000. they pay 10% down and finance the rest at 5.5% APR for 15 years. monthly payment?

total paid for the house?

how much was interest?