What is the arithmetic mean of the following numbers? 8, 1, 2, 6, 1, 4

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

Hi, can anyone show me how to do this problem? 100 points for this. in advance

The two cylinders are similar. if the ratio of their surface areas is 9/1.44 find the volume of each cylinder. round your answer to the nearest hundredth. a. small cylinder: 152.00 m3 large cylinder: 950.02 m3 b. small cylinder: 972.14 m3 large cylinder: 12,924.24 m3 c. small cylinder: 851.22 m3 large cylinder: 13,300.25 m3 d. small cylinder: 682.95 m3 large cylinder: 13,539.68 m3