Is y= 3x-2 a function

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

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

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9