Aboat can cover 12 km up the stream and 75% of that distance down the stream in 6 hours. find the speed of the boat in still water if the speed of the stream is 41 2 3 meters per minute.

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

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

Simplify the expression below -3(10x+4y)+6(6x-2y)