Sally and martha had the same number postcards. after sally sold 18 of her postcards, martha had 4 times as many postcards as sally. how many postcards did each girl have to begin with?

Shayla has a number cube that is number to 6 there is a different number on each side of the cube if shawls rolls the cube 50 times predict how many times you would expect the side with the number 4 to land

Which of the following is an example of randomization?

A teacher has 100 chairs to arrange for an assembly into equal rows. Write one way the chairs could be arranged. Include the number of rows and the number of chairs in each row.

Which of the following could be lengths of the sides of a 30° - 60° - 90° right triangle? A.) 9 cm, 9 cm, 9√2 cm B.) 10 cm, 20√3 cm, 20 cm, C.) 11 cm, 11√3 cm, 22 cm D.) 7cm, 7√2 cm, 7√3 cm

What is the answer to -1 times 2

How many dollars are in 65536

An oblique prism with a square base of edge length x units has a volume of x3 cubic units. Which expression represents the height of the prism? x units x units 2x units x units

How to slimplify 4/7

What's 8/9 minus 3/8?

Scores on exam are normally distributed with a mean of 45 and standard deviation of 8 1. what is the probability that the score of a student will be higher than 52.6? 2. what proportion of the students score below 43? 3.