A gunman opened fire Wednesday night at Borderline Bar & Grill, authorities said, killing at least 12 people and. in the c. #conradtheunicorn #betallatex #paradepromotionsprofits #ballooncoachjoette · # balloonsbytommy #icballoons #ChadJohnson #anasballooncreations #. So a change in A will generate a change in Y according to the this formula: (12) ΔY = kΔA. where k = 1/(1 – c*(1-t) + m) and is the expression for the expenditure multiplier. Steve…