Jody has 2 red marbles, 6 blue marbles, and 9 yellow marbles. What is the ratio of red marbles to blue marbles?

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