I uploaded the answer to a file hosting. Here's link:
tinyurl.com/wpazsebu
Answer: 40
Step-by-step explanation:
The angles form a straight angle, so y = 180 - 80 - 60 = 40.
Answer:
d
7(2x+3y+z)
14x+21y+7z
Factor out 7
7*2x+ 7*3y+7*z
(3,3)