I believe it's B. If you graph, then you put a vertical line. If there are 2 points on the line, it's not a function. Every x-value has 1 y-value for a function. Hope this helps! ;)
Answer:
C. 0.79
Step-by-step explanation: Add yeses and nos together. Total students above average is 70. 55 took prep course. Divdide 55 by 70 and you get 0.79%
The answer is A
Step-by-step explanation:
You multiply when you scale up