<span>If the interest is comounded every 2 months then you will
apply the interest 6 times in a year. So the value of n that you will plug into
your equation is 6 because there 12 months a year then it wll be compounded
every 2 months</span>
Well 1/3 for savings means that you save 1/3*4500 or 1500 dollars. You then have $3000 left. Of this if you spend 50% on food, you spend 0.5*3000 or 1500 dollars on food.
