Which expression is equivalent to - 9x-1 y-9 / - 15x5 y-3

If an angle measures 100 degrees, through what fraction of a circle does the angle turn? A. 1/100 B. 1/4 C. 100/360 D. 1/2

lauren is the youngest of four sisters. the average of their ages (all different whole numbers) is 9 years. what is the oldest that lauren can be, in years?

The area of a rectangular field is 10092 sq meter. its length is three times as its width. Find it's perimeter

Mr. Harris gave each of his two children and equal amount of his baseball card collection. he gave Tony an album with cars on 15 pages and a stack up 25 cars that still needed to be put in the album.

What expression represents how many years are in x months?

A empty graduated cylinder has a mass of 82.14 g. When 25.0 mL of an unknown liquid are poured into the cylinder and the liquid is 104.52. What is the density of the liquid?

Can a TI-84 Plus simplify radicals?

Which math expression represents the phrase? 9 times the sum of a number and 7 a. 9 · n+7 b. 9 · (n+7) c. 9 · (n - 7) d. 9 · (n · 7)

Two triangles have the same heights. One triangle has a base length that is twice the base length of the other triangle. Are the base lengths and the areas of the two triangles proportional?

I need "3 dimensional figures that have a volume of 12, and a volume of 80. I need the volume used to figure out the total volume