I have a question about the system of inequalities. I know how to solve the system but I don't get how to make another equation for the problem.

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

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Which statement best describes the polynomial