The difference of two numbers is 20 their sum is 14 find the numbers

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

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6

You work in a hospital that has 9 floors. you need to see 3 patients on each floor. how many patients do you need to see in all?