On the first day of an experiment there were 8 bacteria in a Petri dish. On the second day there were 16. On the third day there were 32 and so on. Write an explicit formula for the number of bacteria after n days.

The surface area of the triangular prism is .

Vanessa earns a base salary of $400.00 every week with an additional5% commission on everything she sells. vanessa sold $1650.00 worth of items last week.

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.