Below I have attached some pictures to the problem I am confused with. Data table is on the left and on the left are all the questions regarding that data. Thank you!

Just tell me how to set up the equation.

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

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3