Which of the following pairs of expressions are equivalent to each other? Select the pairs of expressions that are equivalent to each other. 3z+2z and 5z

(7x−7x)−y and 0

8.3+7.2b−3.6b and 10.8b

−5r(4−4) and 0

6(q−3) and 6q−18

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

Manny bought 12 pounds of vegetables at the supermarket. 75% of the vegetables were on sale. how many pounds of vegetables were not on sale? 98 points : )

If value of cos330° is √3/2 then find tan165°.