Question 748714
we are asked to evaluate

(-3*10^-3) (2*10^2)= (-3/10^3) * (2*10^2)  note that 10^-3 = 1/10^3
                   = (-3/10) * (2)         cancel 10^2 from numerator and denominator
                   = -6/10
                   = -3/5