Which expression is equivalent to 21 x + 35 y – 14 = 0? y = x + 2
B y = x – 7
C y = -x + 14
D 3x + 5y = 2

Choose the number sentence that shows the identity property of addition. a. 122 = 61 + 61 b. 62 = 1 + 61 c. 61 = 0 + 61

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

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.