Find all of the angle measures in the image.

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a. m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Bring the fraction a/a-4 to a denominator of 16-a^2