Find the value of a and m∠zwt if zw is an
altitude of △xyz, m∠zwt = 3a + 5, and t m∠twy = 5a + 13.

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