they are giving you the answer AB=AC, so what that means is that the angles are congruent to each other so if angle AC=15 and angle DC=5 all the angles will be the same.
Answer:

Step-by-step explanation:
Given function
is linear function. This linear function represents the straight line on the coordinate plane. The slope of this line is
Since the slope is negative, the linear function is decreasing for all x. This means

You ar geven the interval
So, the maximum value of the function is at the point x=-4 and the minimum value of the function is at the point x=3.
At x=-4,

The answer is the bottom right one:
12/40 x 100