8. In a company telephone tree, each employee is to phone two other employees. In the first round, three people are called. After the first round, each person phones two others, and so on. ONTH a) During which round are 192 employees called? Show your work. [2] b) What is the total number of people who have been called in the first five rounds? Show your work. [2] 9. You will be scheduled to work 40 hours during the first week of summer. You can choose the method of payment from the following: Choice 1: You can be paid $18.50 per hour Choice 2: You can be paid $1.50 for the first hour, $3 for the second hour, $4.50 for the third hour, and the pattern continues. What is your choice? Justify your answer. [3]