Write 0.9 as a fraction with a denominator of 10

Adam is using the equation (x) (x+2) = 225 to find two consecutive odd integers with a product of 255.

A group of 60 second graders is to be randomly assigned to two classes of 30 each. (the random assignment is ordered by the school district to ensure against any bias.

The price decreased by nine dollars

What is the equation to seven less than the product of twice a number is greater than 5 more than the same number

Prove n! > = 2^n-1 for all n in the naturals

Nine of 15 students completed their homework. What is the ratio of students who completed their homework to students who did not complete their homework

Yellowstone national park, which is located in wyoming, montana, and idaho, was america's first national park. the park has over 500 geysers. grand geyser erupts about every 8 hours.

40% of what number is 24

What is the slope of 3x+4y=24 and the slope of 8x=48+3y

The coordinates of the four vertices of a rectangle are (1, - 1), (4, - 1), (4, 1), and (1, 1)