Respuesta :

CalebTheNerd101

4x10^-4.

Lets split it apart:

(7.2/1.8)*(10^3/10^7)

4*(10^3/10^7)

(10^3/10^7) = 1,000/10,000,000 = 1/10,000 = 0.0001 = 10^-4.