Company A has a fixed cost for safety equipment rental of $7 per day, regardless of how many hours the kayak is rented for. Company B's charges for a 12-hour day of kayaking are represented by the equation y=7x+10 , which would be y=7(12)+10 = $94 for a 12-hour day. Therefore, company A has a greater fixed cost for a 12-hour day of kayaking.