Ten less than three x take away eight x equal 5

Which continents lie only in the northern hemisphere

What is the general rule about surface currents? cold water flows along the ocean floor towards the equator. the east coasts of continents have cold surface currents, and the west coasts of continents have warm surface currents. seasonal and constant offshore winds create significant upwelling along the west coasts of south and north america and africa. the west coasts of continents have cold surface currents, and the east coasts of continents have warm surface currents.

According to the earth science reference tables, during which geologic time period were the continents of north america,south america, and africa closest together?