Which equation has a solution of k = 6.5 -3k = 19.5

-1 + k = 7.5

-7k = -45.5

-2 + k = -8.5

Which two following best identify the central themes of this speech in the passage the man in the arena

The oldest seafloor in the atlantic ocean is located closest to the edge of the continents. explain how this age can be used to figure out when north america first began to separate from europe

Put these ecosystems in order of least biodiversity to most biodiversity 1. mediterranean forest 2. indonesian rain forest 3. arctic ocean