Pls me me plsss help and show work

Here ya go!

Step-by-step explanation:

C. slope = 0.5, length = 1.6 units

Step-by-step explanation:

See the diagram attached.

D is the midpoint of AB and E is the midpoint of AC.

Therefore, DE will be parallel to BC.

Hence, Slope of BC =Slope of DE =0.5. (Answer)

Now, ΔADE and ΔABC are congruent.

{Since BC║DE, then ∠ADE =∠ABC and ∠AED =∠ACB and ∠A is common.}

So,

Therefore, DE = = = 1.6 units. (Answer)