Yes, they all have 4 corners.
A, 63. If you put in into the calculator, you divide 7 by 11 and you get an answer with a repeating decimal of 6 and 3.
Graph is accurate enuf so that you can determine immed that the vertex / minimum is at (3,-4) and that the y-intercept is at (0,5).
If by "solutions" you mean "roots," the roots are {1, 5} (where y=0).
Answer:
n^-18
Step-by-step explanation:

The answer would be 36 because you just plug 3 in for x