Answer:
1. 7
2. 54÷2=27
only this I know please put brainlest
Let's say that y is the unknown
180=2x+3+5x+1+y
180=7x+4+y
180-7x-4=y
176-7x=y=third angle
(7,2) is the answer.
There you go.
Answer:
120 books
Step-by-step explanation:
57 + 3 = 60
60 x 2 = 120
351.60 would be the answer