Need help Tangent line AD and chord Ac intersect at point A if the measure if ABC ie is 220 what is the measure if CAD ​

Chip worked at the animal shelter for 6 hours each week for several weeks. he worked for a total of 42 hours. which of the following can be used to find the number of weeks chip worked at the animal shelter?

Is the square root of 4 plus the square root of 16 rational?

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