1. The problem is to find the amount of a mortgage, which typically means calculating the loan amount or the monthly payment based on given parameters. 2. The common formula for the monthly mortgage payment $M$ is: $$M = P \times \frac{r(1+r)^n}{(1+r)^n - 1}$$ where: - $P$ is the loan principal (amount borrowed), - $r$ is the monthly interest rate (annual rate divided by 12), - $n$ is the total number of payments (loan term in months). 3. To find the mortgage amount $P$ if monthly payment $M$, interest rate $r$, and number of payments $n$ are known, rearrange the formula: $$P = M \times \frac{(1+r)^n - 1}{r(1+r)^n}$$ 4. Important rules: - Interest rate must be converted to a decimal and monthly rate. - Number of payments is years times 12. - Use parentheses carefully to avoid calculation errors. 5. Without specific values, this is the general formula to calculate mortgage amount. 6. If you provide monthly payment, interest rate, and term, I can calculate the exact mortgage amount for you.