Last week, Laura volunteered at the community clean-up event and earned 2 patches for her scout uniform. She spent 4 minutes sewing the patches onto her uniform. This week, Laura spent the week at the scout camp and earned another 6 patches. If Laura sews at the same rate, how many minutes will she spend sewing her new patches onto her uniform?

Finding a democratic person by the third interview means that  we get first a republican with a probability of 1-0.6=0.4, then  again a second republican with a probability of 0.4, and finally  we find a democratic at the third step with   a probability of 0.6.  in order to find the final probability, simply multiply all the above  values: answer the probability is  0.096