Read and then choose the option with the correct answer. ¡Hola, amigos! Me llamo Julián. En la clase de biología, aprendí sobre el doctor Baruj Benacerraf. Benacerraf estudió inmunología por su enfermedad de no respirar bien.

According to the text, what field was Dr. Benacerraf an expert in?

The exchange rate is 156 pesos for 1 us dollar. it costs 10,218 pesos to check an extra piece of luggage on the plane. you have $65 us dollars. which of the scenarios below best reflects your ability to check your extra piece of luggage? a. whew! you have just enough! b. oh no, you will have to leave your extra piece of luggage behind! c. you have enough to check your extra piece of luggage and buy a coffee for the flight. d. if you can scramble to find some spare change in your pocket, you can check your extra piece of luggage.