Answer:
-2.5
Step-by-step explanation:
Uhhh tep te?
what....
this isn't math, the answer is C.
Here you go! Sorry I took forever to answer!

s'(107) means the value of derivative of s(a) at a = 107. So, first step is to find the derivative of s(a).

Taking derivative of both sides, we get:

Taking the common out from right hand side of the equation:

Applying the power rule of derivative:

Now we can substitute 107 in place of a to get s'(107):

Thus the value of s'(107) rounded to 5 decimal places is 0.35494
$45.43 ÷ 7 = $<span>6.49
Average Cost:- 1 yard of fabric was about $7.
Hope I helped:P </span>