Mario sells men’s and women’s shoes in his shoe store. He is considering selling children’s shoes. He randomly selected 120 customers to participate in a survey. The survey results are shown below. o 42 customers said they would shop for children’s shoes o 78 customers said they would not shop for children’s shoes Mario has an average of 440 customers per month. Based on the survey results, which value is the best estimate of the number of customers that would shop for children’s shoes during an average month?

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