What is each each expression written using each base only only once 4^8×4^3

Cynthia takes her dog to the park every 2 days. she bathes her dog every 7 days. if she took her dog to the park and bathed him today, how long will it be until she does both on the same day again?

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Which table represents points on the graph of h(x) = 3√-x+2?