We would apply the formula for determining simple interest which is expressed as
I = (p * R * T)/100
Where
I represents the interest
P represents the principal or amount borrowed
T represents the duration which is expressed in terms of years
R represents interest rate.
From the information given,
P = 2770
R = 4.86
Recall, there are 12 months in a year. Thus, expressing 35 months in terms of years, we have
T = 35/12
Thus,
I = (2770 * 4.86 * 35)/(100 * 12)
I = 471177/1200
I = 392.6475
Rounding to the nearest cent,
I = $392.65
The interest is $392.65