Simplify -(n + 2) + 3(n – 2)

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Explain how you divide powers with like bases. discuss why the bases have to be the same. how are these rules similar to the rules for multiplying powers with like bases.

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