Explain why the system of equations - 2x + y=6 and y-2x = 4 has no solution

Which of the following statement about pascal's triangle are true?

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

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.