Answer:
On the screenshot below, each little line represents 0.1. It's not labeled 2.7 and 2.8, but if you count the tick marks by 0.1, it shows that exact approximation.
I hope this helps!
<│--------│----------│-----------│----------│----------│-----------│-----------│------------│------│>
2.7 2.71 2.72 2.73 2.74 2.75 2.76 2.77 2.78 2.8
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