Many people have no idea of the difference in size between a million (1,000,000), a billion (1,000,000,000), and a trillion (1,000,000,000,000). 

(a) Write a million, a billion, and a trillion in scientific notation.

(b) Determine how long it would take to spend one million dollars if you spent $1000 a day. 1000 days (about 2.74 years)

(c) Repeat part (b) for one billion dollars. 1,000,000 days (about 2739.73 years)

(d) Repeat part (b) for one trillion dollars. 1,000,000,000 days (about 2,739,726.03 years)

(e) How many times greater is one billion dollars than one million dollars?