URGENT - - WILL GIVE BRAINLIEST Select the equivalent expression.
(
a
−
2
⋅
8
7
)
2
=
?
(a
−2
⋅8
7
)
2
=?

Guys i really need or i have to stay late up night

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

What is the solution to the division problem below x3+x2-11x+4/x+4