Which set of ordered pairs does not show y as a function of x? AO{(3,-2); (5,-3); (7,-4); (9,-5)}
B. O{(3,-2); (6, -2); (9,–2); (12,-2)}
C. O{(4, -2); (5,-3); (6,-4); (7,-5)}
D. O{(4, -2); (5,-3); (4,-8); (5,-9)}

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?