Answer:

Step-by-step explanation:
The graph is similar to Parabola. The transformation of graph is also similar to Parabola.
For B choice, the graph doesn't move by y-axis.
For C choice, the graph would have max-point at -2.
For D choice, similar to the B choice.
You turn them into improper fractions by multiplying the bottom number to the whole number then adding the product to the top of the fraction, therefore
3 1/3 = 10/3, and 1 2/3 = 5/3
10 _ 5 = 5/3
3 3
There will be 18 exterior angles, each of 360/18 = 20 deg. So each interior angle, which is supplementary to the exterior angle will be 180–20 - 160 deg. The sum of the 18 interior angles = 18*160 = 2880 deg.