Martha estimated there were 88 marbles in a jar for a contest. The actual number of marbles in the jar was 110. What was the
percent error of Martha's estimation?

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct