Answer:
<h2>-38</h2>
Step-by-step explanation:

Follow the PEDMAS order of operation
Add and subtract left (left to right )

Just write down the question dum dum
< BAC = 50
< BCA = 90
interior angles of a triangle add up to 180
so < ABC = 180 - (90 + 50) = 180 - 140 = 40
and < ABC = < CDE.......so < CDE = 40 <===
14,4 because if you are working backwards, you’re going to do the opposite each time and 6,8 was the point after only TWO of the transformations
Add all numbers together, then divide by the number of numbers there are. in this case divide by 6