50 is less than or equal to m/16 + 46.
You want to solve for m, so you have to get m on its own.
If you subtract 46 on both sides, you get: 4 is less than or equal to m/16.
Because you want m on its own, multiply 16 on both sides, and you get: 64 is less than or equal to m.
So I think the answer is C.
(I’m so sorry if i’m wrong btw)