It’s the addition property.
Answer:
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Step-by-step explanation:
If dey colinear then
AE=AC+CE
so if AE=x+50 and CE=x+32 then
x+50=AC+x+32
minus x both sides
50=AC+32
minus 32 both sides
18=AC
AC=18 units
35 degrees
Triangles should typically add all up to 180 degrees
2.79 because $44.79 / 15.7 = 2.7891719745 and that to the nearest hundredth is 2.79
Hope this helps! :)