Answer:
Which of the following is a common sign that a chemical change has occurred?
Step-by-step explanation:
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Answer:
x=-10 and y=1
Step-by-step explanation:
-2(-10)=20
-10(1)=-10
20-10=10
I got B and D, sorry if my answers are wrong!!
Answer:
KM=60°
Step-by-step explanation:
The average of arc LN and arc KM is equal to 110.

160+KM=220
KM=60
Answer:
0.30%
Step-by-step explanation: