Hey, please help. thank you

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48

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

Which number line correctly shows 0.8 + 0.3?