Answer: b and d
- the average of the difference of scores would be about 19 points if you were to take many many samples of first year and senior pairs.
- for a pair of randomly selected first year and senior students the difference of their scores typically varies from the mean of 19 points by about 45 points.
Step-by-step explanation: got it right on edge :)
Answer:
[see below]
Step-by-step explanation:
Volume of a triangular prism is: 
We are given the base of 5, the length of 12, and the height of 8. All measurements are in meters.

The volume of the prism should be 240 square meters.
Think about it this way, what is 5x3??? 15 right. Ok then what is 5x30???? 150. So the store should sell each soccer ball for $5 each:)