What is the slope of the line that passes through (2, 5) and (−1, 5)?

Can you guys plz answer this question in order and quickly plz i will give 30 points

For each proportion find the unknown number x 1/5/8=×/15

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