Mindy's credit card has an APR of [tex]$15 \%$[/tex], calculated on the previous monthly balance, and Mindy makes a payment of [tex]$\$[/tex] 50[tex]$ every month. Her credit card record for the last 7 months is shown in the table below.

\begin{tabular}{ccccccc}
\hline
\begin{tabular}{c}
End of \\
month
\end{tabular} & \begin{tabular}{l}
Previous \\
balance
\end{tabular} & \begin{tabular}{c}
New \\
charges
\end{tabular} & \begin{tabular}{c}
Payment \\
received
\end{tabular} & \begin{tabular}{c}
Finance \\
charges
\end{tabular} & \begin{tabular}{c}
Principal \\
paid
\end{tabular} & \begin{tabular}{c}
New \\
balance
\end{tabular} \\
\hline
1 & $[/tex]\[tex]$ 0.00$[/tex] & [tex]$\$[/tex] 45.00[tex]$ & $[/tex]\[tex]$ 0.00$[/tex] & [tex]$\$[/tex] 0.00[tex]$ & $[/tex]\[tex]$ 0.00$[/tex] & [tex]$\$[/tex] 45.00[tex]$ \\
2 & $[/tex]\[tex]$ 45.00$[/tex] & [tex]$\$[/tex] 193.00[tex]$ & $[/tex]\[tex]$ 50.00$[/tex] & [tex]$?$[/tex] & [tex]$\$[/tex] 49.44[tex]$ & $[/tex]\[tex]$ 188.56$[/tex] \\
3 & [tex]$\$[/tex] 188.56[tex]$ & $[/tex]\[tex]$ 90.00$[/tex] & [tex]$\$[/tex] 50.00[tex]$ & $[/tex]\[tex]$ 2.36$[/tex] & [tex]$\$[/tex] 47.64[tex]$ & $[/tex]\[tex]$ 230.92$[/tex] \\
4 & [tex]$\$[/tex] 230.92[tex]$ & $[/tex]\[tex]$ 77.00$[/tex] & [tex]$\$[/tex] 50.00[tex]$ & $[/tex]\[tex]$ 2.89$[/tex] & [tex]$\$[/tex] 47.11[tex]$ & $[/tex]\[tex]$ 260.81$[/tex] \\
5 & [tex]$\$[/tex] 260.81[tex]$ & $[/tex]\[tex]$ 3.00$[/tex] & [tex]$\$[/tex] 50.00[tex]$ & $[/tex]\[tex]$ 3.26$[/tex] & [tex]$\$[/tex] 46.74[tex]$ & $[/tex]\[tex]$ 252.07$[/tex] \\
6 & [tex]$\$[/tex] 252.07[tex]$ & $[/tex]\[tex]$ 227.00$[/tex] & [tex]$\$[/tex] 50.00[tex]$ & $[/tex]\[tex]$ 3.15$[/tex] & [tex]$\$[/tex] 46.85[tex]$ & $[/tex]\[tex]$ 432.22$[/tex] \\
7 & [tex]$\$[/tex] 432.22[tex]$ & $[/tex]\[tex]$ 88.00$[/tex] & [tex]$\$[/tex] 50.00[tex]$ & $[/tex]\[tex]$ 5.40$[/tex] & [tex]$\$[/tex] 44.60[tex]$ & $[/tex]\[tex]$ 475.62$[/tex] \\
\hline
\end{tabular}

What were the finance charges in month 2?

A. [tex]$\$[/tex] 3.26[tex]$
B. $[/tex]\[tex]$ 0.78$[/tex]
C. [tex]$\$[/tex] 0.56[tex]$
D. $[/tex]\[tex]$ 0.56$[/tex]



Answer :

To determine the finance charges for month 2, we start by looking at the relevant data given for month 2.

The table specifies the following data for month 2:
- Previous balance: \[tex]$45.00 - Payment received: \$[/tex]50.00
- Finance charges: ?

We know that the Annual Percentage Rate (APR) is 15%, and finance charges are assessed on the previous balance.

Let's break down the calculation step-by-step:

1. Calculate the Monthly Interest Rate (APR):

The APR of 15% is an annual rate, and since finance charges are calculated on a monthly basis, we need to divide the APR by 12 (the number of months in a year).
[tex]\[ \text{Monthly Interest Rate} = \frac{\text{APR}}{12} = \frac{15\%}{12} = \frac{0.15}{12} \approx 0.0125 \][/tex]

2. Determine the Finance Charges for month 2:

Finance charges are calculated based on the previous balance.
[tex]\[ \text{Finance Charges} = \text{Previous Balance} \times \text{Monthly Interest Rate} = \$45.00 \times 0.0125 = 0.5625 \][/tex]

3. Verification of finance charges against the given data:

The calculated finance charges of \[tex]$0.5625 must be matched with one of the available answers to confirm its validity. Hence, the finance charges for month 2 were: \[ \boxed{0.56} \] By comparing the calculated amount with the given answer choices, we find that the closest and correct option is: \[ \text{C. } \$[/tex]0.56
\]

Therefore, the correct answer is C. \$0.56.