A: adding together 2 and 3 a bunch of times
2+3+2+3+2+3 etc does not equal 28. a possible answer can be 27 students.
Let's see what to do buddy...
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The sum of the angles of each n-sided figure is found in the following equation :

The question's figure is 5-sindes figure
so the sum the angles equal :

So we have :


Subtract the sides of the equation minus 479


And we're done.
Thanks for watching buddy good luck.
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Not sure how to do it in this form but in slope intercept form for example if the slope was -4/3 the perpendicular would be 3/4 it’s the negative reciprocal of the answer