Max hotel had 128 rooms and 25% of the rooms in the hotel did not have an ocean view

Are carpet coast $15 per square metre. the total delivery charge is $21 peter buys n squared metres of carpet what is the expression which represents the total cost in $

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Carmen ayer en el mercado compro 3/4 kg de guayabas, 6/8 kg de peras, 1/2 kg de naranjas ¿cuantos kilogramos de fruta compro?