How do I do this?pls help someone i need to understand it for a important test tomorrow

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

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

Circle o has a circumference of approximately 44in what is the approximate length of the diameter d