A culture of 2.4×1011 bacteria is in petri dish A. A culture of 8×109 bacteria is in petri dish B. How many times greater is the number of bacteria in petri dish A than petri dish B? Enter your answer, in standard notation, in the box.
Divide : 2.4/8=0.3 10^11-9=10^2 0.3•10^2 (This is not in scientific notation 1 or 1 to 9) Move the decimal right once and subtract one from the exponent. 3•10^1 Standard notation is 30.
