How many terms are in the algebraic expression Negative 2 a minus b?

Brent wants to know what is 5 x 1/2

Given the graphed function below which of the following orders pairs are found on the inverse function

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