HELP PLEASE!!!
TO TAKE A TAXI DOWNTOWN IN ST. LOUIS IT WILL COST YOU $3.00 TO GO A MILE. AFTER 6 MILES IT WILL COST YOU $5.25. THE COST VARIES LINEARLY WITH THE DISTANCE TRAVELLED.
WRITE THE PARTICULAR EQUATION EXPRESSING COST (C) IN TERMS OF MILES (D) TRAVELED.
PLEASE SHOW ALL WORK