4 is the answer because there are only 4 numbers greater than 10.Those are the people who ride bikes ore than 10 times.
To spend a total of $135, Camille would have bought 27 tickets at $5 each.
I am too lazy I'll explain so you find 688 minus 267 then you divide the difference by 6 and then u subtract the difference from 267x100 because that will be the total. Then u find the mean of the 94 numbers u get!