I need to know what this equals

I think <2 would be 45 degrees. <1 is 135 degrees so that means that 4 would be supplementary to angle one. Supplementary angles added together equal 180 degrees. So, you would have to subtract 180-135 leaving you with 45 degrees. This means that 4 would be 45 degrees. Two is vertical to four so it means that they equal the same amount. That means that <2 is 45 degrees.

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13