Structural Engineer Costs. Homeowners spend an average of $512 on hiring a structural engineer, with most homeowners spending between $319 and $708. The larger and more detailed the project is, the higher the cost of hiring a structural engineer becomes. Some professionals charge by the job, while others may charge by the hour.
The total surface area of Earth is about 197 million square miles (509 million square km). About 71 percent is covered by water and 29 percent by land.
hahaha its how many hahaha. I was going to say ..The earth travels about 584,020,178 miles (939,889,369 km) in the course of its orbit about the sun. but the answer is already there. it should be, how many miles does the earth travel ..... of course, this assumes a circle, and it's really an ellipse.