You are investing $1,000 at 4% for thirty years. Over those thirty years, how much extra will you earn in compound, versus simple, interest? (Recall you are earning simple interest at 4% for 30 years, and compound interest - or interest on the interest - as well. How much "interest on the interest" do you earn over 30 years?) $1,200 0 $2,200 0 $2,243 0 $1,043 O $3,243