Answer:
m<EBD = m<ACE = 48°
Explanation:
I assume you are told that quadrilateral ABDC is a rectangle.
m<ACE = m<EBD
3y + 15 = 7y - 29
-4y = -44
y = 11
m<ACE = 3y + 15
m<ACE = 3(11) + 15
m<ACE = 48
m<EBD = m<ACE = 48
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