Help me please I added a picture to it

Plz which expression is equivalent to the expression below?

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

If a line is defined by the equation y = 5x + 2, what is the slope?