By the rules of secants, 50° is half the sum of 20° and x.
50° = (20° + x)/2
100° = 20° + x
80° = x
1a) Some of the interior angles of a 15-gon must be 13 x 180=2340 degrees. Since it’s regular, the total is shared equally among the interior angles. 2340/15=156 degrees
Answer:14/16
Step-by-step explanation:
14/16
Answer:

Step-by-step explanation:
Each y is 3 times the last one, so it's geometric, so exponential. 3 should appear as the base.