1. Melissa is planning to invest a total of $18,000 in two accounts. If she invests $10,000 in a CD paying 4.2% annual simple interest, at what rate does the remainder of her money need to be invested so that the two investments together yield at least $740 in yearly simple interest? (Define your unknowns, set up and solve an inequality to answer this question).

2. A store advertises that you can take 30% off the purchase of any item in the store. If you pay $61.60 (disregarding tax) on an item, what was the original price? (Define your unknowns, set up and solve an equation to answer this question).