A rectangle has length 8 cm The rectangle has area 20 cm2 The length of the rectangle is increased by 2 cm The area of the rectangle is increased by 4 cm2 Noah says, “The width of the rectangle decreases by less than 5%” Is Noah correct? You must show how you get your answer.

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

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?

You have 17 cats that live in houses on your street, 24 dogs, 3 fish, and 4 hamsters. what percent of animals on your block are dogs?