Answer:
You draw it on the graph right
150 times .1 is 15 so add 15 to 150 and get 165 then times that by .1 and get 16.5 add to 165 and get 181.5 times .1 and get 18.15 and add to 181.5 and get 199.65 as the answer.
2*10^8
the exponent would be 8
hope this helps!