Why do low literacy rate (education) in a country effect that country's economic development?

The following are sumerian inventions, except

In 100,000 years, the rotation of earth will be slower by how many seconds?

You are a financial planner and you are preparing for a meeting with your new client, anne. what would you be most likely to ask anne to bring to the meeting with her? a. pictures of her children b. her parents c. any will d. sales records for her ex-husband's business