Answer each question about the following arithmetic series: 12 18 24 30. . . 198 What is the explicit rule for the arithmetic sequence on which the series is based? an = (n â€"" 1).

What is the distance between (–2 1/2,-3) and (1, –3)?

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.