How do you get the answer 31 r14 when you divide 913 by 29?

This is about circle theorems. someone asap : (

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.

Determine the intercepts of the line that passes through the following points. (15,-3)(15,−3) (20,-5)(20,−5) (25,-7)(25,−7)