The weights (in pounds) of all the seven cats at a cat day care are given below.
2,5,10,8,9,6,8
find the population variance.

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

When turned about its axis of rotation, which shape could have created this three-dimensional object?

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 is he correct? explain why or why not?