A) f(-1)= -4
B) f(-1)= 3
C) f(-1)= 1/4
D)f(-1) = 1/3

c  f(-1) = 1/4

Step-by-step explanation:

f(x) = x-1

      x^2 -9

Let x=-1

f(-1) = -1-1

         (-1)^2 -9

f(-1) = -2

         1 -9

     =-2/-8   = 1/4

what does muffins have to do with anything?

step-by-step explanation:

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.