PLEASE HELP ME I-ready: enter the total cost for 9 tickets ​

Nine more than four times a number is the same as one less than twice the number. find the number?

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.

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2