Can you please write an expression and then tell me the expression in simplest form... worth about 20 points...

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.