Answer:
A. 11
Explanation:
Since the measure of (4x- 6) is 90°, you would first solve the equation for x
4x - 6 = 90
4x - 6 + 6 = 90 + 6
4x = 96
x = 24°
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Since (4x - 6) was a right angle, (x + 6y) is also a right angle. Therefore, you would do:
x + 6y = 90
24 + 6y = 90
24 + 6y - 24 = 90 -24
6y = 66
y = 11°
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Hope this was helpful!!!