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Make sure answers are correct?

Make sure answers are correct?

It is math review. We had to review what we did last year. Just basic math.
I want to know if I did the math correctly.

4. if a local business provided half the bottled water needed for the August bicycle race, about how many bottles did the company provide?

Now there is a graph, and the graph says there is about 300 bottles of water in may.
About 600 in august.
And about 170 in November.

Now it says for August so does that make the answer about 300?

and

10. the recreation center has provided softballs every year to the city league. Use the table to estimate the number of softball the league will use in five years.

So for this one it says 28 softballs are supplied for the recreation center. So you round 28 to 30 and you multiply that by five to get the answer as 150… right?

and

12. if the recreation center loses about 4 table tennis balls per year, and they are not replaced, about how many years will it take until the center has none left?

I got confused with this one because I thought to round 4 to 5. But I didn't know if they already rounded it. And the number of tennis table balls is 95. So 95 divided by 5 is 18. So I decided to round 18 to 20 and got about 20 years.

If you can just make sure I got the answers correctly would be extremely helpful.
Thanks.

Sorry, but math happens to be my worst subject.

Make sure answers are correct?

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