Is x=-7 an equation that describes a function

Given the f (x) = 8x - 3, find g (x) if g (x) = 5 - 2[f (x) ]2.

Data with two variables is called

The width of a rectangle is 7 meters greater than its length

If f (x) = 2x2+3x-4, and g (x) = -8x-4, what does f (x) + g (x) equal?

Whats 5hundreds plus 2tens

What is the percent change from 70 to 56

Which rational number is equivalent to 3.27 repeating? A. 327/990 B. 27/99 C. 47/11 D. 3 27/10 E. 3 27/100

Which of the following is a regular polygon?

The sloping side of a cone is 10cm and the height is 8cm. find the radius of the base

Two companies make batteries for cell phone manufacturers. One company claims a mean life span of 2.5 years, while the other company claims a mean life span of 3 years (assuming average use of minutes/month for the cell phone).