Angles A and C are supplementary when the quadrilateral is inscribed in a circle.
∠A = 180° - ∠C
∠A = 180° - 74° = 106°
Answer:

Step-by-step explanation:
Write the quotient as a mixed number

we divide 77 by 6
1 2
-----------------------
6 7 7
6
-----------------------(subtract)
1 7
1 2
--------------------------(subtract)
5
Quotient is 12 and remainder is 5
we write mixed fraction as 

Mathrie 134x3= 402 ship names are my specialty:)
The answer is 6 ..........