Step-by-step explanation:
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Answer: 
Step-by-step explanation:
It is important to remember the following:

In this case you can observe in the figure that "x" is an Angle formed by two chords, therefore, you can find its value applying the formula.
Therefore, the value of "x" is this:

A 10% tip on $23.47 is $2.35. To get this, you would multiply $23.47 by .1, which comes to 2.347, rounding to $2.35.
The value of y is 56 when x = 8.
Given
y = 343 when x = 49
Value of y varies directly with x
Therefore, y ∝ x
We can write the equation with a constant 'k'
y = kx
When y = 343 and x = 49
343 = k × 49
k = 343/49
k = 7
When x = 8,
y = kx
y = 7 × 8
y = 56
The value of y is 56 when x = 8.
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