Mi papá necesita comprar una casa al < < from > > señor ortega. el precio pedido es novecientos ochenta mil pesos. mi papá quiere regatear el precio y quiere ochocientos veinte mil pesos. el señor ortega no quiere vender barato y regatea con novecientos cincuenta mil pesos. el precio final es ochocientos noventa mil pesos.

Based on the text, the cheapest price mentioned is:

Mr. Ortega's house.

The text mentions that the narrator's father wants to buy the house from Mr. Ortega, which has a preliminary cost of $980,000, however, the father wants to haggle up to a price of $820,000, then Mr. Ortega's counter offer is $950,000.

After negotiations, the house is at a final price of $890,000, however, the lowest price is the one that the father thought to pay in the beginning, therefore, the correct option is $820,000.

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i would say "están" :