1 / A watermelon cost 6 times as much as a pear .
Regina spent 4/7 of her money on some watermelons and 2/3 of her money on 24 pears.
a. How many watermelons didshe buy ?
b. If each pear cost $ 0.50, how much did Regina have at first ?
2 / Aline and Jim shared a sum of money .
Aline's share was $ 180 less than Jim's share . After Jim gave 1/7 of his share to Aline ,
Aline had $ 20 more than Jim .
a / How much did Aline have at first ?