I believe the answer is C. It doesn't make sense to drop an object from -16 feet, and it doesn't make sense to have a -120 in the equation. It should be positive for it to come out right.
No, it is not a valid inference because her classmates do not make up a random sample of the students in the school.
Answer: This sample may be biased because he is only asking the bike riders when in reality there might be a majority of students who instead take an alternate form of transportation
Step-by-step explanation:
If each there are 40 pencils, then divide to find how much each pencil is.
37.20 / 40 = $0.93
Correct answer is D.
After solving, we see that buying the case of 40 pencils is cheaper than buying 40 individual pencils.
Hope This Helped! Good Luck!