Corey was going to sell all of his stamp collection to buy a game for his gaming system. After selling half of his stamps, he changed his mind. He then bought 17 more. How many stamps did Corey start with if he now has 64

The air pressure of each tire in a group is normally distributed with a mean of 39.2 pounds per square inch (psi) and a standard deviation of 2.5. If a tire in this group has a z-score of - 1.8, find its air pressure.

To decide whether two triangles are similar, is it enough to know that one pair of corresponding angle measures is equal?

Describe the solutions of 4 + n > - 2 in words. The value of n is a number less than - 6. The value of n is a number greater than or equal to - 7. The value of n is a number equal to - 7. The value of n is a number greater than - 6.

54d. Change the following expression into a single fraction: 5b - 2/b

Oni claims that the product of any fraction and 2323 will always be less than 2323.

Eight thousand six and thirty-four thousandths * Write as a decimal

The diagonals of a trapezoid are congruent only if the nonparallel sides are congruent--True or False

Solve 2x2 + 5x + 5 = 0. Round solutions to the nearest hundredth.

Determine if the ratios are proportional. 4/5 and 15/20

What is the angle of a triangle if one angle is 68 and the other is 52