Answer:
Step-by-step explanation:
we know that
The compound interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
substitute in the formula above
4.9=4.2
4:5
28:35
28/7:35/7
hopefully this helps :)
A
He should have added 0 to 8 and multiplied 1 by 8