Correct answer only ! how do i translate this into spanish without a translator, ? ¿que estas pensando? i'm thinking about how to improve my spanish.

Which of these expressions is the most casual way to greet a friend

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

Análisis del cuento alguien soñara de jorge luis borges