The marginal cost of producing the xth box of CDs is given by 9 − x/(x2 + 1)2. The total cost to produce two boxes is $1,100. Find the total cost function C(x).

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick

Ateam of runners is needed to run a 1 2 -mile relay race. if each runner must run 1 4 mile, how many runners will be needed?