Morty buys and sells computer parts. he bought two monitors for $25 each and later sold them for $88 each. he bought four cases for $15 each and later sold them for $24 each. he bought five memory modules for $20 each and later sold them for $55 each.

morty's total cost for the items he purchased was

morty's revenue from the sale of the items was

morty's total profit was

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