The cost of producing x soccer balls in thousands of dollars is represented by 6(x) = 5x + 6. The revenue is represented by k(x) = 9x - 2. Which expression represents the profil (k - h)(x), of producing soccer balls?​

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