Answer:
Step-by-step explanation:
In a parallelogram, opposite angles are congruent
5x = 100 {Divide both sides by 5}
x = 100/5
x = 20
In a parallelogram, adjacent angles are supplementary
2y + 100 = 180
2y = 180 - 100
2y = 80
y = 80/2
y = 40
