There are four $20 bills, five $10 bills, seven $5 bills, and four $1 bills in your wallet. You select one bill at random. What is the expected value for this experiment?

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A school conducts 27 test and 36 weeks assume the school conducts test at a constant rate what is the slope of the line that represents the number of tests on the Y axis and the time in weeks on the X axis A: 3/4 B: 4/3 C: 3 D: 4

Do you times diameter by two to get the radius

The area of a rectangular classroom is given by the trinomial a - 4a - 21. The length of the rectangle is a+3. What is the expression for the width of the classroom?

Erykah has 6 less than 3 times the number of stamps in her collection that Chris has in his. Let r equal the number of stamps Chris has. Which expression represents the number of stamps Erykah has? (Let r = the number of stamps Chris has) A.

How do I graph 3x=-12y + 3. Need to know how to plot

a soup can is in the shape of a cylinder with a radius of 1 inch and a height of 3 inches. how much paper is used for the label of the soup can, which covers the lateral surface surface area of the soup can

Nine students choose integers. Seven of them are: - 16, 12, - 13, - 6, - 5, 6 and 1. When all nine integers are ordered from least to greatest, the middle integer is - 6, describe the other two integers.

If you have 100 dollars and you have to buy 100 animals using all the money how many of each animal would you buy ... Pig-5 Hen-1 Chicks-.05 How many of each would you buy have to buy a least one of each

Using GCF and the distributive property, write two equivalent expressions for 30+45?

How many 2/3s are in 6?