-1/3+2z=-5/6
-2/6+2z=-5/6
Add 2/6 to both sides:
2z=-3/6
2z=-1/2
Divide both sides by 2
z=-1/4
Hope this helps :)
40 students prefer vanilla. To get this answer you need to multiply 200 times 0.2 because you are trying to find 20%
42in.^2 should be the answer that you are looking for. Hope this helps