Which of the statements below are true for linear functions? select all that apply. the general equation is y=mx+b. the general equation is ax^2+bx+c. the general equation y=ab^x. the graph contains a vertex. the slope of the graph is constant and can be defined as rise over run.

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Which of the following parabolas opens down?

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.