I need help on my spanish homework it would be greatly appreciated :)

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

Choose one of the following locations: guayaquil, sucre, or la paz. then, write an e-mail of 7-10 sentences, in english, as if it's from a travel agent who is trying to persuade a family in the united states to visit the city you chose. in the e-mail describe the each of the following in at least two sentences each: location, culture, sites, food, and activities. your descriptions must be persuasive and different from the lessons.

#'s 106-115 conjugation. stem-changers! conjugate the ver sentences. remember: e-le, e1, o ue, u ue. angers! conjugate the verbs in the following 1. é (poder) ir con nosotros, 2. ¿tú (dormir) ocho horas cada noche? 3. el maestro (empezar) la clase a las once. 4. ellas (perder) su perro 5. ¿quién (jugar) el fútbol americano? 6. fernando y yo no (entender) los verbos, 7. yo quiero (cerrar) la ventana. 8. ¿ (pensar) ustedes estudiar para el examen? 9. nosotros (pedir) la chimichanga en el restaurante. 10. tú (servir) la comida.