Farmer bill sold potatoes at the farm market. he sold a quarter to the first person,4/9 of what was left to the second person, and the third buyer bought4/5 of what was left and the last 10 lb. how many pounds of potatoes farmer bill sold?

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)

Can someone me out here and the tell me the greatest common factor

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