Work that is unpaid is called what

Using data from 2010 and projected to 2020, the population of the United Kingdom (y, in millions) can be approximated by the equation 10.0y - 4.55x = 581 where x is the number of years after 2000. In what year is the population predicted to be 71.

The polygon angle sum theorem states that the sum of the measures of the interior angles of an n-gon is

Shoe sells for a certain company were $25.9 billion. sales are expected to increase by about 20% in the next year. find the projected amount of shoe sales next year

Ads galore makes posters with standard dimensions of 81/2 inches by 11 inches. Both length and width of the poster may vary 1/20% according to the ads galore's regulations.

1: - (5x + 7) + 1 = - 5x - 5 2: 4x - 7 + 2x = 2 (3x - 3) - 1 3: - 4x - 2 = - 2 (1 - 4x)

If you have a test average of 92 and a standard deviation of 1.8, you generally do well on test. true or false

Karla went shopping and bought a dress for 5 1/2 dollars and a skirt for 2 3/5 dollars / If she paid for the clothes with a $20. how much money did she have left? how do I solve the problem using an equation or model

A sphere has a decimeter of 12 ft what is the volume of the sphere? Give the exact value in terms of

Which statement about a right triangle is true? A. the length of each leg equals 1/2 of the hypotenuse. B. the square of the hypotenuse is equal to the sum of the squares of the legs C. One leg is always longer than the hypotenuse. D.

Leon sold $5560 at his sports card store. The expenses for his business were $1349. How much profit did the club team make?