51. Show that the absolute minimum value of f(x) = x 2 + x 2 (8 − x)2 , x > 8 occurs at x = 10 by using a CAS to find f (x) and to solve the equation f (x) = 0.

If f(x) = 3x-2 and g(x) =2x+1 find (f-g)(x)

Acable company claims that the average household pays $78 a month for a basic cable plan, but it could differ by as much as $20. write an absolute value inequality to determine the range of basic cable plan costs with this cable company. a. |x − 78| ≥ 20 b. |x − 20| ≥ 78 c. |x − 20| ≤ 78 d. |x − 78| ≤ 20

4percent of a number is what fraction of that number? ? i really need asap