My number has 2 hundreds, the tens digit has 9 more than the ones digit

A water wheel makes 28 revolutions in 90 seconds. how many revolutions can it make in 4 minutes?

Area of a semi circle

Match the range of the function (x) = x + 2x - 1 to its domain. 3

Order the integers form least to greatest 11,11,18,18,8

Two cities on a map are 3 1/4 inches apart. The scale on the map is 2 inches equal 80 miles. What is the actual distance between these two cities?

Evaluate the expression below when y = - 3. 2y + 7 -4y - 10 A. -1 22 B. -13 2 C. 1 2 D. 1

A science teacher ordered $660 worth of microscopes and dissection kits for the new science lab. A total of 22 microscopes and 44 dissection kits were ordered. A microscope costs three times as much as a dissection kit.

The square root of a 100 is it a whole number or natural number

How do u expand 500,000

How does the volume of a sphere with radius 2cm compare to the volume of a sphere with radius 1cm