Step-by-step explanation:
Below is an attachment containing the solution.

now, a line perpendicular to that one, will have a "negative reciprocal" slope, thus
Answer:
120 pounds I think
Step-by-step explanation:
C. would be the correct device to use in trials.
But the actual probability is:
(1-1/4)^5
243/1024
(about 23.73% chance none of the five chose vanilla)
$2,960 each. because $3,000- $40=2,960