Option 3 is not possible
-60.2 + 32 = -60.2 + 60
And these are not equal
Rest all options have x and are solvable
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9514 1404 393
Answer:
(a) 2021
Step-by-step explanation:
The expression can be simplified.

<span>infinite number of significant figures would be your answer </span>
Answer:
200 messages
Step-by-step explanation:
Let m = number of messages.
Plan A: 0.1m + 40
Plan B: 60
0.1m + 40 = 60
0.1m = 20
m = 20/0.1
m = 200
Answer: 200 messages