Help i tried and cant get the answer lol​

Prove that 16^4-2^13-4^5 is divisible by 11.

Geometry - finding area of regular polygons and sectors (check my math, i can’t find the error)

David is standing on the sixth rung of a ladder while painting his house. which expressions represent a change in david’s position of 2 rungs on the ladder? choose exactly two answers that are correct. a. 6+2 b. 6-2 c. 2x6 d. 6/2