What subject pronoun would you use when talking to your aunt?

usted
tú
ella
ustedes

Sheila conducts an investigation to see how the amount of salt dissolved in water affects the density of the water whichstatement best describes the correct plan for her procedure? the density and the amount of water are controls, and the amount of salt and the type of salt are variablesthe amount of water and the amount of salt are controls, and the type of salt and the density are variablesthe type of salt and the amount of water are controls, and the amount of salt and the density are variablesthe type of salt and the density of water are controls, and the amount of salt and the amount of water are variableso

Need with this match the pronoun with the sentence it belongs to: )

Selecciona las respuestas correctas. ¿cuáles son algunas frases ciertas sobre la tradición de los muñecos que se hace en ecuador durante el año nuevo? they make dummies that are dressed up like famous people. the dummies are made out of metal. no one is allowed to see the dummy until new year's eve. people ask for money for the dummies' funerals.