What are the coefficents in the polynomial 7x^2-4x+6

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

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

You use technology ans find a sum of 6.712e-8. write this sum in standard form