When n = 4, l = 2, and ml = -1, to what orbital type does this refer?

will tell you the subshell type, so you are dealing with a d orbital.  

ml will tell you the orientation of the orbital, there is no distinction between the orbitals so -1 doesnt specifically mean anything.

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying

bcde is the incorrect answer it is a