Is point (20,15) on line j? Explain how you know.

your answer would be 12

i would say b) is your answer

sorry if im wrong

step-by-step explanation:

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true