BRAINLIEST Which expression is equivalent to 2 + 2m + m + 6 + m?

Group of answer choices

A. 2(m+3)

B. 4(2+m)

C. 8+2m

D. 12m

B

Step-by-step explanation:

2 + 2m + m + 6 + m

Separate all the m values and the units:

2m + m + m = 4m

2 + 6 = 8

Group them together to get:

4m + 8

Which you can factorise out 4 to get:

4(m+2) or its the same as 4(2+m)

therefore answer is B

i dont know

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4