Which of the following is equal to the rational expression when x=-1 or -7? (x+1)(x-1)/(x+7)(x+1)

a. x+7/x-1
b. x-1/x+7
c. x+1/x+7

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.

Tatiana wants to give friendship bracelets to her 32 classmates. she already has 5 bracelets, and she can buy more bracelets in packages of 4. write an inequality to determine the number of packages, p, tatiana could buy to have enough bracelets.