Y=7/2x-2 need help solving

The diameter of a table is 5 feet. what is the circumference

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

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.