This is an ellipse.
Equation of an ellipse: 
Let's find the center point first. We can do this by finding out the midpoint between the vertices or the foci.
(-9+7)/2=-1
Center: (-1,3)
Now we need to find a and b (length along x and length along y).
We know "a". It is the distance between the center and the right or left bound.
a=7-(-1)=8
To find out "b", first see that...
b^2=a^2-(distance from center to foci)^2
foci distance=3-(-1)=4
b^2=8^2-4^2
b^2=64-16
b^2=48
b=4√3
answer: 
The question says kilograms every minutes, so it's C or D. The answers on A and B same
15 x 20 and 10 x 30 hope this works
Answer:
19 chicken wings
Step-by-step explanation:
For $39.10=23 chicken wings
For $1=23/39.10 chicken wings
For $32.30=23/39.10 x 32.30= 19 chicken wings
Answer:
Parallel
Step-by-step explanation:
Parallel lines are 2 coplanar lines that dont intersect at any point