Y= -1/3x-4 (the first one)
Answer: 36
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Explanation:
There are 35 girls and 50 boys. Making 35+50 = 85 students total.
Of the 85 students, 42% (see column 1, bottom row) bought their lunch from the cafeteria. So 0.42*85 = 35.7 which rounds to 36
we know that
Any function f(x) is continuous at x=a only if

We can see that this curve is smooth everywhere except at x=3
so, we will check continuity at x=3
Left limit is:

Right limit is:

Functional value:

we can see that left limit is not equal to right limit
so, limit does not not exist
so, this function is discontinuous at x=3
Since, limit does not exist
so, there will be non-removal discontinuity at x=3
so, option-C........Answer