1.2 * 10^3 means shift the decimal 3 places right. 1200 which is 1200
4 * 10^-1 can be handled 2 ways 10 to the minus 1 in the denominator
becomes 10^1 in the numerator. notice the sign change on the 10 when you
shift it ....it becomes plus
1200 * 10 ^ 1
12000
now you are still left with 4 in the denominator
12000/4 = 3000
So your answer would be D. 3000
