PLEASE HELP ASAP!!

Solve the equation below.
A. 196
B. 198
C. 243
D. 248

Nnnnneeedd 1.find the residual if you know the actual number is 5.2 and the predicted value is 4.8

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.