I need a real-life reference to the mathematical definition to variables

Math how many models of 100 do u need to to model 3,200 explain

How can i simplify - 9 (1-10b) + 7 (2b-11)

An 80-ounce bottle of apple jucie contains 32 ounces of water. a 64-ounce bottle of orge juce has 48 ounces of water. Which jucie has a greater percent of water? What percent of the bottle of apple juice is water.

The exterior angles of a triangle measure x + 3, 2x + 1, and 3x - 4. Find the measure of each exterior angle. A) 18°, 31°, and 41° B) 23°, 41°, and 56° C) 33°, 61°, and 86° D) 63°, 121°, and 176°

A^2+b^2+c^4=2020. Yes

Where would the brackets go to make these numbers possible i) 3 x 4 + 8 : 2 = 10 ii) 6 2 : 12 - 3 + 4 x 12 = 48 (6 2 is actually an exponent 2 is the power)

in the diagram of parallelogram ABCD shown below the measure of angle A is five times the measure of angle D what is the measure of angle A?

How is 123,000,000,000 expressed in scientific notation?

Which expressions are equivalent to 8 (-10x+3.5y-7)

The length of a rectangular garden is 5 feet greater than the width. the are of the rectangle is 300 square feet. find the length and the width.