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!
Associative property of addition
10^1=10
10^2=100
10^3=1000
10^4=10,000
The power multiplies the number by itself the number of the power. When multiplying 10 to the power of any number, just make the number of 0's in the final number equal to the exponent.
10^34 will be a 1 with 34 zeros on the end.
