Answer:
A) I = $171.73
B) $4771.73
Explanation:
We are told her loan is $4600 for 7 months.
Thus;
Principal; P = 4600
Time; T = 7 months = 7/12 year
Interest rate is given as 6.4%
Thus; r = 6.4
A) To get the interest, the Formula is;
I = PRT/100
I = (4600 × 6.4 × (7/12))/100
I = $171.73
B) Since interest is $171.73, it means amount she owes after the 7 months = $4600 + $171.73 = $4771.73