Question

Which of the following would be a reasonable estimate for the weight of a pencil?

A.
1 × 1020 lb
B.
1 × 10-2 lb
C.
1 × 10-20 lb
D.
1 × 102 lb

Answer 1

I think its c

Explanation:

It has to be with a negative exponent because a pencil weighs like a gram so its just a 50/50

Answer 2

The answer should be A