The answer is 81.1 because since the 9 place value above 5, you round the number in front of it to 1. so the answer is 81.1. I hope that helps.
Answer:
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Answer:
79853709 with the exponent of 94
Step-by-step explanation:
Combine like terms-- you can combine the k's:

Now you have:

Simply divide both sides by 2.5 to find the value of k:
X is equal to 2. The steps are listed below :)