Which of these relations is a function? CHOOSE THE CORRECT ANSWER

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

answer: 486in^2

step-by-step explanation:

l' jhl jje f id bid b e iueb v jhdvb vh ei uf djbduv evb                                                                                                                                   8gfdgsfhjk.,l/ uh   dv eb b                            

you have to find the same variables -3n - 5n so this would be -3n +(-5n) which equals -9n