A because all of the numbers add up to 100 and there is 30 red so that would make it 30/100 and simplified it would be 3/10
3 terms
https://youtu.be/0sq2PMQ_Nak
use that video to help you.
the gender of the kids does not matter so it can be discarded.
you add up how many boys and girls in the class to make a total of 50 kids
your 100% is 50
meaning 40% of 50 is 20
so if 20 kids took the bus to school then 30 did not take the bus.
He drives an extra 4/10 miles you can check your work by adding 4
The square root of 24 is = 4.898979485566357
