A parallelogram is made within the shape below by connecting the midpoints of the quadrilateral. Find the lengths of a and b.

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

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?

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?