What is the probability of selecting a blue marble from a jar that contains 9 blue marbles 6 red marbles and 5 green marbles

9/20

Step-by-step explanation:

add all the marbles together which equals to 20 then subtract the number of blue marbles which is 9 so you have a 9 in 20 chance to get a blue marble

9.16 times 106=970.96

8.05 times 108=869.4

Next, subtract 970.96 minus 869.4.  That equals 101.56.

Then, to put that in scientific notation move the decimal three places to the left.  The answer is 1.0156x10^2