Will give brainliest ! In this sequence , identify the common difference . ( 3,7,15,21 )
plz plz help me . ♡​

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

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?