It is an elipse
D is the answer
We are unable to answer this question without being able to see the graph.

Explanation:
The triangle is right angled.
The formula for area of the triangle:

base = 3
height = 4
substitute the values:
Answer:
alr 5x+11 and 2x-3
5x+11=16x
2x-3=-1x
Step-by-step explanation:
df
f
ff
f
f
g
g
t
t
t
t
t
t
y
y
y
y
Function: 12+0.5x
12+0.5x=18.5
0.5x=6.5
x=13 days