How to solve y=8/x^2 and is it a linear function or non linear equation?

What is this inequality notation? t is less then or equal to 2

Solve 13 + w/7= -18 (w/7 is a fraction)

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