Answer:
556
Explanation:
The simple interest is 1.4%, so first we need to work out what 1.4% of 500 is:
500 x 0.014 = 7
It has since been 8 years when he put the money into the account, so now we multiply this amount by 8:
7 x 8 = 56
So JD's total savings is 500 + 56 = 556 (and whatever currency you use)