Abby took an after-school job as a checker at petco. she stocks 9 large bags of cat food per hour and there are already 7 large bags on the shelf when she started working. write a function rule for the number of customers abby has checked out after 'x' hours.

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]