Using the Y= on the TI-84, we can compare/contrast the graphs of these two functions.  How does the red compare to the blue?

There are well over 200 boys altogether and only 56 chose Niagara Falls — way less than half so 2 of the answers can be eliminated.
How many boys chose Niagara Falls?
What was the total number of boys?
Use division:
56 out of the total number of boys

This question can be done in many ways.  Students can cross multiply or find a common denominator or even try each of the four answers to find the one that when you add 10  to that number (x + 10) and then divide that by 15, the answer is 4/3.
That’s it — 2 points on the Regents!!

For this question, we need to use the Distributive Property:
2(x^2 – 1) = 2x^2 – 2
while
3x(x – 4) = 3x^2 – 12x

Michael Paul Goldenberg’s excellent comment was that the constant term must be -2 and that leads us right to the answer!  Thanks

Combine like terms and only the x^2 are combinable.
A way to check your work is to put  2(x^2 – 1) +  3x(x – 4) into Y1 and to put each multiple choice answer into Y2 and then compare to see if the tables for Y1 and Y2 are equivalent.