Part 2 to my last question

Part 1: what would be the correct conjugation for the underlined verb according to who is doing the action? ángel y veronica estudiar para la clase de español. estuido estuidas estuida estuidamos estudian part 2: what would be the correct conjugation for the underlined verb according to who is doing the action? raúl necesitar estudiar más. necesito necesitas necesita necesitamos necesitan

Como see llama la familia anfitriona de charlie y sophie

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