During the first week of summer vacation, John earned $500 and Abbey earned $350 at their summer jobs. They decided to combined their money and spend 2/5 of their money on new clothes, 1/20 on new sunglasses, and 1/4 on new shoes. How much of their money do they have left after their shopping spree?

At the beginning of the year Anna invested a portion of her $90, 000revenue from the sale of her house in an account that earns 8% annualsimple interest, and the remainder in an account that earns 9% annualsimple interest. If at the end of the year, she earned total interest of$7760, how much did she invest in each account?

Two years ago when she changed jobs, Jackie’s income doubled, and last year she received a $4,000 raise. If she is now making $31,800 more than she was making before her income doubled, how much is she earning now?

Simone earned $500 doing extra chores during the summer. She put some of the money in a CD that earned 5.5%. She put twice as much in a savings account that earned 4.8%. She put the same amount that she put in the savings account into a bond fund that earned 3.7%. After one year, the three accounts made $22.50 in interest. How much did Simone put in the CD?