Question

What is the quantity that could be represented by the number 2x10- 3?

Answer 1

A.
the diameter (in meters) of an atom
B.
the time it takes (in minutes) to blink
C.
the occupancy limit of a pizza restaurant
D.
the annual salary of a high school math teacher

Answer 2

2 x 10 - 3 will give you 17.
D is not it because 17 dollar a year for a teacher is impossible!
A is not it because the diameter of any atom is less than a meter.
So it's either B or C.