6 3/4=6*4+3/4=24+3/4=27/4
z/12=27/4
4z=27*12
4z=324
z=81
For a number to be a multiple of 6, it must be divisible by 6
and a number divisble by 6 means that it is divisble by 2 and 3
since the ones digit is odd it is not divisble by 2 which means 61 is not a multiple of 6
It would be 31. 31 is a whole number. since 0.91 is close to 1. We would round it to 31 because of that.
The mean is 23.875. That would be roughly $24 each time
