A hospital manager will purchase first aid supplies and new machinery. The hospital has $75,000 left in its budget for the month. Each first aid kit costs the hospital $15 and each new piece of machinery costs the hospital $1200. Additionally, there is room for only 45 new pieces of machinery in the hospital. If k represents the number of first aid kits and m represents the number of pieces of machinery, which of the following systems of inequalities models this situation?