Answer: $15680
Step-by-step explanation:
Principal = Unknown
Time = 5 years
Rate = 9.8%
Simple interest = $7683.20
Simple interest= PRT/100
7683.20 = (P × 9.8 × 5)/100
7683.20 = 49P/100
Cross multiply
768320 = 49P
P = 768320/49
Principal = $15680
Margaret borrowed $15680 to buy the car.