Write an algebraic expression for each of these:
The cost per person of a flight from Manchester to Aberdeen is £73 plus £27 tax and an extra £15 for each piece of luggage.
Write down a formula to calculate the total cost (T) of a flight for p people with a total of (l) pieces of luggage. ____________The number of sheep (S) that a dragon can eat per day is 3 plus a third of its wingspan in metres (w).