6/7 is not a whole number.
6/7=0.857
If you want, you can round 0.857 to a whole number.
0.857 as a whole number would be 1.
Given:
Principal = $3,500
Rate of interest = 7% compounded quarterly (4 times in an year)
Time = 6 years
To find:
The amount.
Solution:
The formula for the amount is

Where, P is principal, r is rate of interest, n is number of times interest compounded in an year and t is number of years.
Putting P=3500, r=0.07, n=4 and t=6 in the above formula, we get





Therefore, the amount after 6 years is $5307.55.
What do you need help with
The answer would be 3x+2=10x-5