90 minus 32 is 58! You were off by two degrees:)
Answer:
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Step-by-step explanation:
Answer:


Step-by-step explanation:
Solving (47):
To solve for B, we have:
--- sum of angles in a triangle
This gives

Collect like terms


Solving (48):
To solve for Y, we have:
--- sum of angles in a triangle
This gives

Where
-- angle on a straight line
Solve for X


So, we have:



For the last 2 questions,
1. 9/10
2. 7/12