Mrs. smith teaches junior high school. during a class party in fourth period, she used 4/5 liters of soda for 12 students. if she had a class party in fifth period and used the same serving size, how many liters did she use for 30 students?

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit