Answer:
Ok so El Desayuno means breakfast and El Almuerzo means Lunch
The correct choice to fill the blank and complete the sentence is number three, un vaso.
• Para tomar agua, necesitas un vaso.
The answer would be 500 students.
To find this answer: (5/7) = (x/700)
7x = 3500
3500/7 = 500
x = 500