What is the solution to log 2(9x)-log base 2 3= 3

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

What function has a range {yly< 5}? question on picture above^

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.