R-4+3r-16=180
4r-20=180
4r=200
r=50
Angle D
r-4
50-4
46
Angle E
3r-16
3•50-16
150-16
134
Please remember that a parallelogram is 4 parallel lines and the opposite sides are congruent. With that information you should be able to pick the correct answer.
245 because it has rt and then number s one
Answers and workings in the attachment below.
Answer:
Simplified: -4u? + 5u^2 - 5u - 3
Step-by-step explanation: