HELP ME PLZZ, ASAP!!

In your own words explain what Adjacent Angles are.

There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?