There are about 16 kilometers in 10 miles. About how many kilometers are in 5 miles? 3 kilometers, or 8 kilometers or 80 kilometers or 32 kilometers?

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