Decide whether or not the events are commutative.Putting on your left glove and then your right glove.
A. No
B. Yes
Answer: B
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Solve the equation or inequality.x ? 4 and x ? -2
A. ? B. [-2, ?) C. [4, ?) D. [-2, 4]
Solve the problem.The owner of a video store has determined that the cost C, in dollars, of operating the store is approximately given by 
where x is the number of videos rented daily. Find the lowest cost to the nearest dollar.
A. $660 B. $610 C. $510 D. $760
Determine independence. Answer Yes or No.According to a survey, 8% of students at a college are left handed, 53% are female, and 4.24% are both female and left handed. Is being left handed independent of gender?
A. Yes B. No
Solve.Gary has to choose between two calling plans for his local phone service. Plan A charges a monthly fee of $30 regardless of how many local calls are placed. Plan B charges $15 per month plus $0.50 for each local call placed. Express each plan's price structure, y, in terms of number of calls placed, x.
A. Plan A: y = 30 Plan B: y = 15x + 0.50 B. Plan A: y = 30 Plan B: y = 0.50x + 15 C. Plan A: y = 30x Plan B: y = 0.50x + 15 D. Plan A: y = 15 Plan B: y = 0.50x + 30