What set of numbers do not contain whole numbers

Which of the following points is collinear with (-2,1) and (0,3)

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

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