Question 280100
If John put $40 into his investment account every month for up to a year, that would be 12 months of putting $40 into his account. If there is a 7% annual interest, first multiply 40 by 12, to find the total amount that was deposited throughout the year. 
{{{40x12= 480}}}

So if $480 was the total amount deposited into the account, Next multiply $480 by the annual interest, 7%, which equals $33.60. Now add $33.60 to $480, that equals $513.60, this is the total amount now in his investment account.