Needing answers to these easy geography questions! Brainliest! I’m basically reading a story for ELA and have to get all my work done becuase it was due Friday... I’ll give Brainliest!

The oldest rocks in the south atlantic ocean, immediately adjacent to the african and south american continental shelves, are 120,000,000 years old (time). calculate the average rate of seafloorspreading for the south atlantic ocean over its entire existence (hint: use formula: velocity = distance/time): /yr (velocity). now convert that to: cm/yr: