Mary is 3 years older than her brother. her brother is half as old as their mom. the sum of all three of their age is 63. how old is mary?

Solve 2^x=32 and rewrite this equation in a logarithmic form

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4

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