What is the value of X?

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6

The bolo cavern outside of vandalia is 421 ft below sea level. a little more than75 miles away. mt owens is 7295 feet above sea level. what is the difference in elevation between the bolo cavern and mt owens?