Step-by-step explanation:

9514 1404 393
Answer:
x = 136
Step-by-step explanation:
The angle marked x° is half the sum of the intercepted arcs:
x° = (130° +142°)/2 = 272°/2
x = 136
Best to worst;
8.34/6 = $1.39
7.95/5 = $1.59
12.53/7 = $1.79
5.97/3 = $1.99
3n^2 sqrt 5n
hope that helped (: