Answer:
.
Step-by-step explanation:
D n J = {7,8} (intersection)
Values that satisfy both sets.
D u J = {-1,1,4,5,7,8} (union)
All values present in both sets.
Jamie's claim isn't reasonable. This is because half of 4/5 is 4/10 and if you simplify it, it is 2/5.
False however all polygons with 5 sides do have the same sum of all their interior angles
Answer
0.126 x 3.4 = 0.4284 or rounded 42.8
