What is the value of the expression, written in standard form.(6.6×10^-2)(3.3×10^-4)

1) 6.6 * 3.3 = 21.78

2) (10^ - 2 )*(10^ - 4) = 10 ^ ( -2 - 4) = 10 ^ - 6

3) result: 21.78 * 10 ^ - 6

4) to convert to standard form run the period on space to the lef and  multiply the ten base by 10 =>

2.178 * 10 ^ - 5

2.178 * 10 ^ - 5

The probability of picking 2 green markers is 2/10