13. this is really hard. if you can. see image below.

The parking lot of a store has the shape shown. all angles are right angles. what is the area of the parking lot?

For what value of x does 4x = (1/8) x + 5?

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?