Answer:
8.68·10^7
Explanation:
Scientific notation is a number with no zeros between 1-10 that is multiplied by a number of 10's so here we just take away 868 and add a decimal point to make it between 1-10 8.63
then we count our zeros and add the amount of numbers behind the decimal point
thats how many 10's there will be(7)
our answer is 8.63·10^7