Answer :
Get it into normal #s
360•10^3 = 360000
1.8•10^-5 = .000018
Divide Get back to scientific notation
360000/.000018 = 20000000000 = 2•10^10
360•10^3 = 360000
1.8•10^-5 = .000018
Divide Get back to scientific notation
360000/.000018 = 20000000000 = 2•10^10