Me write an equation for the interior angles of this triangle that uses the triangle sum theorem

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

What is this inequality notation? t is less then or equal to 2

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0