A blue light flashes every 8 seconds. A red light flashes every 12 seconds. Both lights have just flashed together. After how many seconds will both lights flash together?

Thomas works for a company that occupies a large campus every workday he orders a cup of coffee on campus and the $1.50 cost is automatically deducted from his paycheck. if thomas visits the coffee shop 13 times what will the net change in his paycheck be