Hello my spanish people, can i get some with this question?

!

Uno de los símbolos nacionales de puerto rico es el coquí. true false

Question 5 (fill-in-the-blank worth 1 points) yo nado en la answer for blank 1: question 6 (fill-in-the-blank worth 1 points) ¿quién sube las maletas? el answer for blank 1: question 7 (fill-in-the-blank worth 1 points) el ascensor no funciona (fuctioning, working). yo uso la answer for blank 1: question 8 (fill-in-the-blank worth 1 points) la habitación tiene un cuarto de privado. answer for blank 1: question 9 (fill-in-the-blank worth 1 points) yo quiero la habitación individual con un cuarto de privado. answer for blank 1:

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