Ms. Geronimo has a $10 gift certificate to her local bakery.
a. If she buys a slice of pie for $2.20 and uses the rest of the gift certificate to buy chocolate macaroons that cost $0.60 each, how many macaroons can Ms. Geronimo buy?
b. If she changes her mind and instead buys a loaf of bread for $4.60 and uses the rest to buy cookies that cost 1 1/2 times as much as the macaroons, how many cookies can she buy?