How much is a $28 shirt
that is on sale for 30% off?

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

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Pranza plotted point a in the coordinate plane below.