-2.75 + 8.25 shown work pls

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

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.