In Mrs. Ferguson's class, the ratio of students who bring their lunch from home to those who buy their lunch in the cafeteria is 3:5. If 15 students bring their lunch, how many students buy their lunch?

Arecipe calls for 32 fluid ounces of heavy cream. how many 1 pint containers of heavy cream are needed to make the recipe?

Solve 3x-18=2y and 5x-6y=6 by elimination show work

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