Answer:
D, "I will pay $25 for this book."
Step-by-step explanation
Find the nonpermissible replacement for a in this expression 6/-5a
Denominator cannot be zero or else undefined so set the denominator to zero and solve for the a that will cause the denominator to be zero.
-5a=0
-5/-5x=0/-5
x=0
Nonpermissable replacement is 0.
1-(-8)
1+8 (add a line change the sign)
=9