Answer:
76,
Step-by-step explanation:
If you divide 57 by 3, you get 19. If you times 19 by 4 that is the total number of students there were in all.
Answer:
m=-2
Explanation:
If a line passes through the points (4,5) and (2,9): to calculate the slope, use the formula below:

Substituting the points, we have:

The slope of this line is -2.
Answer:
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Step-by-step explanation:
A parabola is the locus of points equidistant from the focus and directrix. This means the distance from the green point is the same to the focus as it is to the directrix. The appropriate choice is ...
... B. 7