Which expressions are equivalent ? A. 3v+5-9v+2 and 6v+6 B. -6n+3-2n+2 and -8n+6 C. -4n+8+9n-2 and 5n+6 D. 10n-5-2n+3 and 5n-2

  C.  -4n+8+9n-2 and 5n+6

Step-by-step explanation:

The equivalent expression is found by combining like terms:

  -4n +8 +9n -2 = n(-4+9) +(8-2)

  -4n +8 +9n -2 = 5n +6 . . . . . matches choice C

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The other answer choices have flaws in the work:

  A. 3v -9v ≠ 6v

  B. +3 +2 ≠ +6

  D. 10n -2n ≠ 5n

C. -4n+8+9n-2 and 5n+6

Step-by-step explanation:

Hope this helps, and holy cow! the person above me deserves brainliest!

2

step-by-step explanation:

1+1=2

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet