How is a rate a measure of one quantity per unit or another quantity

Abbey purchased a house using a fixed rate mortgage. the annual interest rate is 4.2% compounded monthly for 20 years. the mortgage amount is $235,000. what is the monthly payment on the mortgage? this isn't a multiple choice question have to show my work

Someone . me. compound probability

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?