What is (your formal singular) in spanish?

Spanish 2a: unit 5 writing practice 3 now it is time to write sentences with two object pronouns! use the steps below, and the example sentences to : (photo attached)

Which part of this sentence is not correct? esta muchacha tan bonito es alta. a. muchacha b. bonito c. esta d. alta

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.