Mike discovered that the pool in his backyard is leaking slowly. The pool holds 18,880 gallons of water, and is leaving at a rate of 9 gallons per day. If mike does not replace the water that has leaked from the pool, how many gallons of water will remain in the pool after 70 days?

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years