Find the area of a regular pentagon if the length of the apothem is 8 centimeters?

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Can someone me with these two circle theorem questions asap?

Find the domain and range of the following function f(x) = 51x - 21+ 4