What is the domain of the function represented by this graph

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

What is the volume of the cone to the nearest cubic millimeter? (use π  = 3.14) a) 46 mm3 b) 128 mm3 c) 183 mm3 d) 275 mm3 diameter = 5 mm height = 7 mm how do you do this problem step by step?