Select the correct answer. Find the solution(s) for x in the equation below. 12 + 10 + 21 = 0 A x = -3; x = -7
B. x = -3; x = 7
c. x = 3; x = -7
d. x = 3; x = 7​

An animal shelter has fixed weekly expenses of $750. each animal is the shelter costs an additional $6 a week. during the summer months, the weekly expenses are at least $1170. write and solve an inequality that represents the number of animals at the shelter for expenses to be at least $1170 a week.