Myra's stamp collection consisted of 120 stamps in October. By the following March, her collection had grown to 138 stamps. By how much did her collection increase between October and March?

18%

15%

12%

9%

How many ways can you select 3 different toppings for a pizza with 8 toppings to choose from?

Find the area of a rectangle with the length measuring 8 km and the width measuring 5km

Sam intends to roll a six sided cube 100 times. What is the probability model he can use to predict whether or not each roll will give a result that is not a prime number?

P divided by 28 = - 26

Shelly compared the number of oak trees to the number of maple trees as a part of a study about hardwood trees in a woodlot. She counted 9 maple trees to every 5 oak trees. Later in year there was a bug problem and many trees died.

A store ordered 28 boxes holding 12 banana muffins each and five boxes holding 6 blueberry muffins each. What was the total number of muffins the store ordered?

Use substitution to solve the system of equations. y = - 2x x - 3y = 21 (3, 4) (-6, 12) (3, - 6) (-2, - 6)

Solve x/42=3/7 using two different strategies. explain each strategy

Jerry kitten grew 3cm between the age 4and 5 months. The kitten grew 2cm between the ages of 5 and 6 months. At 6 months the kitten is 19cm tall was jerry kitten at the age 4months

Find the discriminant and the number of real roots for this equation 9x^2+12x+4=0