Martin wants to buy a new bedroom set that costs \( \$ 1429 \) including tax. Unfortunately, he doesn't have \( \$ 1429 \), so he secures a 2 -year loan from the furniture store at \( 9 \% \) interest to be repaid in 24 equal monthly instaliments. Find the monthly payment. Round your intermediate steps to the nearest cent. The monthly payment is \( \$ \square \)
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Bonus Knowledge
To find the monthly payment for Martin's loan, we can use the formula for monthly payments on an installment loan, which is: \[ M = \frac{P \cdot r(1 + r)^n}{(1 + r)^n - 1} \] Where: - \( M \) is the monthly payment, - \( P \) is the loan amount (principal), - \( r \) is the monthly interest rate (annual rate divided by 12), - \( n \) is the number of months. Here, \( P = 1429 \), the annual interest rate is \( 9\% \), which gives a monthly rate of \( r = \frac{0.09}{12} \approx 0.0075 \), and \( n = 24 \) (for 2 years). Plugging in these values into the formula: \[ M = \frac{1429 \cdot 0.0075(1 + 0.0075)^{24}}{(1 + 0.0075)^{24} - 1} \] Calculating \( (1 + 0.0075)^{24} \approx 1.1916 \): \[ M \approx \frac{1429 \cdot 0.0075 \cdot 1.1916}{1.1916 - 1} = \frac{12.7469}{0.1916} \approx 66.63 \] So, the monthly payment is approximately **\( \$ 66.63 \)**.