Until they give you some way to relate R and r, there is no way to proceed. Sorry!
sorry about the cap and lower case, the R's were the same
If R to the power of 3 = 351
What is the value of 4 times R to the power of 3?
if that explains it better
the answer is 1404, or at least that what the answer key says.
How do they get the answer???