Solve 6x + 3 < x < 3x + 9 for integers values of x

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

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.