In a survey of 3474 adults aged 57 through 85​ years, it was found that 88.3​% of them used at least one prescription medication. Complete parts​ (a) through​ (c) below. a. How many of the 3474 subjects used at least one prescription​ medication?

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