Step-by-step explanation:
The sum of two opposite interior angles equals an exterior angle
50+?=115
?=115-50=65°
The correct answer is D
The base 16 is the same as 4*4.
From there, the rule is used to get
Afterward, the exponents are added getting 1/2+1/2 = 2/2 = 1. The rule is which only works if the bases are both the same.