Which equations are true?

Question

A: (1.1 X 10^8)/(5.0 X 10^5) = 2.2 X 10^3
B: (3 X 10^4) - (2 X 10^4) = 10,000
C: (12.01 X 10^-5)/(8.75 X 10^-6) = 1.375
D: (1.8 X 10^9) + (3.4 X 10^9) = 5.2 X 10^9
E: (6.12 X 10^-3) X (4.25 X 10^-2) = 1.37 X 10^-5

Answer 1

The equations that are true are:

C: (12.01 X 10^-5)/(8.75 X 10^-6) = 1.375
E: (6.12 X 10^-3) X (4.25 X 10^-2) = 1.37 X 10^-5