(2,3) is your answer for the equation
We know that the sum of the interior angles of a triangle equals 180, then,in this case we have the following equation:

then, solving for b, we get:

now that we have that b = 41, we can find the measure of each angle:
Answer:
c
Step-by-step explanation:
the x coordinations can not repeat as it does in option c so c is the answer
11 divided by 9 is 1.2 repeating so Ellie will have to do about 1.3 parts a week