20/110 because there's 20 kids in her third period but 110 overall hope I helped in time
Answer:
its the second one
Step-by-step explanation:
The standard form of any linear equation with two variables is

, where a, b, and c are constants. To convert this equation to standard form, simply subtract

from both sides to get

We could leave it in this form, though, in this case, it might be better at if we multiplied both sides by -1 to get
Answer:
The set of all points on a plane equidistant to a given point.