Answer:

Step-by-step explanation:

Bisect means cut in half. If m<ABD is 66 degrees, the only thing you need to do is to take 66/2 and your answer is 33 degrees:)
<span>Visually impaired students averaged 8.14 hours of sleep with a standard deviation of 1.78 hours. Average sleep of the students will be 6.36.</span>
There are NO SOLUTIONS.
Substitute the first equation for y in the second equation. You can see it does not work. 6 does not equal 8. Therefore there are no solutions.