If m∠7+m∠6=180° which Theorem would prove the lines are parallel

Your answer should be 1/3. i hope i could ! good luck : )

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?

Y=-3x is the correct answer