The answer is 6 because a=8
Answer:
40 children went on the cruise.
Step-by-step explanation:
This question can be solved by a system of equations.
I am going to say that:
x is the number of adults on the cruise
y is the number of children on the cruise.
57 tickets were sold:
This means that
, and since we want the number of children y, 
Each adult had to pay $22 for the cruise and each child had to pay $10. The company's total receipts were $774.
This means that:

Since 





40 children went on the cruise.
The answer to #9 is 2.16%
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➷ Angles subtended by the same arc are equal
Therefore, x = 30 degrees.
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