Answer the following question, with explanation first.
Fred was having a party and was responsible for buying canned soda. He figured every guest would drink 2 sodas and he was inviting 15 people to the party. The local store had a deal on sodas that week. Every 6 pack of canned sodas was on sale for $3.00. How much would it cost Fred to buy enough sodas for every guest to have 2 cans?

15
He planned on 2 sodas per guest and invited 15 guests so 2 * 15 = 30 cans of soda.

Each pack of soda had 6 cans.

He needed to buy 30 cans of soda for his guest so 30 / 6 = 5 packs of soda.

The soda was on sale for $3.

00 per 6 pack and he was buying 5 packs so 3 * 5 = $15.

00 for soda.

.

The answer: 15