Find the solution to the system of equations represented by the matrix shown below

Find the difference (8ab+a+2) - (3ab+6)

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

Having a hard time understanding this question (see attachment).