(Score for Question 1: ___ of 5 points)
Simplify . Show your work.
Answer:

(Score for Question 2: ___ of 5 points)
Solve for x. Show your work.
Answer:

(Score for Question 3: ___ of 5 points)
Gina was working in the laboratory on an experiment involving the population of bacteria. If her initial starting amount in a petri dish was 125 bacteria, how many would be in the petri dish after 24 hours? Show your work.