Answer:
45
Step-by-step explanation:
90+45=135 180-135 is 45
16 3/4 + 12 3/4 =
3/4 + 3/4 = 6/4 =1 2/4 = 1 1/2
16 +12 = 28
28 + 1 1/2 = 29 1/2 hours
Well, I am not exactly sure if this is what your asking but one foot is twelve times the size of a foot.
4(x-y)^4
4((-2)-(-4))^4
4((-2)+4)^4
4(2)^4
4(256)
THE ANSWER IS 512