Hey there James!
So, just remember, 2/5 is almost half of 1.
When it is almost half of 1, this means that it would have to be 2.5/5
This would mean that 4/10 would be your answer, because it is almost half of 1 also.
Hope this helps.
Answer:
Here's a great website to use for this. It even gives you graph to copy down.
https://www.wunderground.com/history/daily/PABR/date/2009-5-10
Answer:
49 can be broken down into 7 * 7 so the prime factorization is simply 7².