Which expression has a value that is equivalent to the given expression when n = 8? 2n + 10

2 times 8 equals 16 + 10 equals 26

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

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