Answer:

Step-by-step explanation:
Given


Required
Represent as an equation;

Expand the above

<em>Recall that b = $10 ----given</em>
becomes


Answer: c) There is not enough evidence to reject H0
Step-by-step explanation:
31 seconds it will take to get around without it stopping
You're answer is the third one, you gotta divide the money by the hours worked and then compare.