The 7/8 pound fish.
2/3lb = 0.6666 lb
7/8lb = 0.875 lb
Answer: The answer would be B) 9% Decrease!
275 - 250 = 25.
25/275 = 0.0909090909
0.0909090909 x 100 = 9.09090909091
Finally you'd round it to 9%.
Therefore there was a 9% decrease in the amount of large pizzas.
Hope this helps (: Stay safe.
I assume you're asking where it meets the y axis
In an equation the last number is the y intercept so I'm this case it would be 1
1.
is less than 3.5
2.
is more than 2.1
3. -5.3 is more than -5 
4.
is less than 0.8 repeating