Find the slope of the line perpendicular to the line y=6x+11

The value √10 and √15 are plotted on the number line

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23