Suppose you did a survey of male shoes size and the mean of that survey was size 10.5 with a standard deviation of 1.5. What is the z-score of a size of 8.5?

If b-a=c-b=d-c, what is d-b

At Pam's Beading Boutique, 22% of the 1,850 beads on clearance are plastic. How many plastic beads are there on clearance?

Frank got a gift for his sister and put it in a shoebox. Note: Figure is not drawn to scale. Now, he wants to wrap it with wrapping paper.

A new sidewalk will be 4 feet wide and 50 yards long. Eighty pounds of concrete mix covers 4 square feet and costs $3.65. How much will the concrete for the new sidewalk cost?

9.684x√22√ : (987.56:π)

An 80-ounce bottle of apple juice contains 32 ounces of water. A 64-ounce bottle of orange juice has 48 ounces of water. Which juice has a greater percent of water? " What percent of the bottle of apple juice is water?

Simplify the expression: 4x2 - 8y + 3x - 9x2 + 10y

What is 20% of 605?

What is 76 divided by 5

Jennie and 5 of her friends are going to open skate night. Jennie does not have a membership card. Only some of her friends have membership cards. What is the total amount that Jennie and her friends might pay for admission?