Line i is perpendicular to the line m. the slope of line m is -2 . if the line contains point 0,9 what is the equation of line i ?

Arid and semiarid subcategories are part of which climate

Food can come from sustainable or unsustainable resources. why has the united nations suggested that bugs could be a better source of food than animals like pigs or cattle?

Which of the layers of the earth has the following three characteristics? i. it is made of molten rock. ii. it has currents that are constantly moving. iii. earth’s plates float on top of its currents.