-16^2t+32t+5.2 Solve for t

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

Which representation has a constant of variation of -2.5

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!