c^6 ÷ c = c^5
a^5 ÷ a^5 = a^(5-5) = a^0 = 1
(0.1)^20 ÷ (0.1)^6 = 0.1^(20-6) = 0.1^14
(-0.5)^16 ÷ (-0.5)^8 = (-0.5)^(16-8) = (-0.5)^8
c^6 ÷ c = c^5
a^5 ÷ a^5 = a^(5-5) = a^0 = 1
(0.1)^20 ÷ (0.1)^6 = 0.1^(20-6) = 0.1^14
(-0.5)^16 ÷ (-0.5)^8 = (-0.5)^(16-8) = (-0.5)^8