Vertical Asymptotes of Rational Functions Answers

A chemist has 200 mL of a 10% sucrose solution. If she adds x milliliters of a 40% sucrose solution, what is the percent concentration of the final mixture?Which expression represents the total mass, in grams, of sucrose in the final mixture?

Which function represents the percent concentration, y, of the final mixture?

Which rational function represents this situation?