Christine's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Christine 5.90$ per pound, and type B coffee costs 4.45$ per pound. This month, Christine made 170 pounds of the blend, for a total cost of $898.60 . How many pounds of type B coffee did she use?

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