They have 310 stickers in total
5w + 9z = 2z + 3w
Move terms with w to the left - subtract 3w from both sides
2w + 9z = 2z
Subtract 9z from both sides
2w = -7z
Divide both sides by 2
w = 
I solved 2/5(x − 2) = 4x. I don't know why you included those extra numbers.
<u>-2/9</u>
The answer is 3/8. Christopher with have to share 3/8 of pie with each of his friends.
Answer:12 hrs
Step-by-step explanation: $15 per hour -> $180/$15 = 12 hours