Question

Help!?!?!?!??!!!!!!!!!!!!!!

Answer 1

D.
`(21 \: b)/(10) - 48` ✅

Explanation:

`- 6( (1)/(4) b+ 10) + 4( (9)/(10)b + 3) \\ = ( - 6 \: b)/(4) - 60 + (36 \: b)/(10) + 12 \\ = ( - 3 \: b)/(2) + (18 \: b)/(5) - 60 + 12 \\ = ( - 3 \: b * 5)/(2 * 5) + (18 \: b * 2)/(5 * 2) - 48 \\ = ( - 15 \: b + 36 \: b)/(10) - 48 \\ = (21 \: b)/(10) - 48`

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Answer 2

Explanation:

Answer d) looks good