Atricycle has 3 wheel. how many wheel are there on 4 tricycles

The price of a coat increased from $78 to $92. what is the price increase percentage?

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

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is