Question

NEED HELP!!!!!(WILL GIVE MORE POINTS TO CORRECT ANSWER)

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Answer 1

`x = 6 \\ \\ m<NBS = 68`

Explanation:

m<NBS+ m<SBR = m<NBR

`(12x - 4) + 42 = 17x + 8 \\ \\ 12x + 38 = 17x + 8 \\ \\ 17x - 12x = 38 - 8 \\ 5x = 30 \\ \\ x = (30)/(5) \\ \\ x = 6`

`m<NBS = 12x - 4 \\ = 12(6) - 4 \\ = 72 - 4 \\ = 68`

I hope I helped you^_^