At a hardware store, a contractor buys x bags of concrete and a wheelbarrow. The function C(x) = 4.30x + 150 represents the total cost, in dollars. Which statement is true? A The cost of the wheelbarrow is $150, and 150 represents the slope of the function. B The cost of the wheelbarrow is $150, and 150 represents the y-intercept of the function. The cost of the wheelbarrow is $4.30, and 4.30 represents the slope of the function. D The cost of the wheelbarrow is $4.30, and 4.30 represents the y-intercept of the function.

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