Janna has $34 and will save $6 per day. write an equation to represent the relationship between the number of days and amount saved. indicatewhat each variable represents in the equation

Plz which expression is equivalent to the expression below?

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

Icould really use some with this question.