Step 1:
Find how many microliters of blood there are in a 140lb person.
=140 * (2.7*10^4)
=140*(2.7*10*10*10*10)
=140*27,000
=3,780,000 # of microliters of blood in a 140lb person
Step 2:
Find how many white blood cells in a 140lb person
=3,780,000* (7*10^4)
=3,780,000*(7*10*10*10*10)
=3,780,000*(70,000)
=264,600,000,000 # of white blood cells in a 140lb person
(or 2.646 * 10^11 using scientific notation)
Hope this helps! :)
