Answer:
1 question : 0.89 I think.
Answer:
x=-7
Step-by-step explanation:
The sum of the angles of a triangle are 180 degrees
40 + x+57 + 90 =180
Combine like terms
187 +x = 180
Subtract 187 from each side
187-187 +x = 180-187
x = -7
Answer:
41 + 2y = 71
2y = 30
y = 15
Step-by-step explanation:
i believe that is right, if not sorry
Answer:
-3*23
Step-by-step explanation: