Answer:
59
Step-by-step explanation:
Because multiply 18.8 and 3.14 and get a number with a decimal so round up and get 59 :)
The estimate for 39% of 80 is 31.2
Hope I helped :)
Answer:
Step 3
Step-by-step explanation:
They divided, they should have multiplied
Well, this is a broad question but I would say pie. Pie is used very early on in secondary school and therefore a lot of people already know about it and how to use it. But for example if your a banker E would be more important as banks use e to calculate interest.
Hope this helps, have a great day.