[填空题]
Mehmet organises a gradb )12a vemv-uzb:erf .*h, oywu+yklec t z)h60ation party on a boat in the Strait of Istanbul for his peers from college. The cost to rent a large boat for the evening is 5000 Turkish liras (TRY) and the co6ykhe 0czt)l +st to hire a DJ is 1500 TRY. The cost for food and drinks is estimated to be 125 TRY per person.
1.nd an expression for the total cost, y TRY, of the evening in terms of the number of peers, x, attending the party. y = a+bx a = b =
2.nd the total cost of the evening if 40 peers attend the party. y = TRY
3.ven that Mehmet decides to collect 250 TRY from each peer attending the party, find the least number of peers he has to invite to be able to cover the total cost of the evening. x =