Math Problem Statement
Rachel is purchasing a new camera that costs $2800$2800. Rachel uses a credit card that has an APR of 19.33%19.33%. How much will she pay in total to pay off the purchase if she makes monthly payments of $80$80? Round the number of monthly payments up to the nearest whole number. Round your final answer to the nearest whole number, if necessary.
Solution
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Math Problem Analysis
Mathematical Concepts
Interest Rate Calculation
Exponential Functions
Logarithms
Formulas
Monthly interest rate: r = APR / 12
Total number of payments: N = ln(P / (P - M * r)) / ln(1 + r)
Theorems
Logarithmic functions in financial calculations
Suitable Grade Level
Grades 10-12
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