Acube has a length of 9.3 cm. what is the surface area of the cube?

 518.94 square centimeters

Explanation:

The surface area of the cube is given by

           Surface Area = 6*(edge)²

Since the edge of the cube in this problem is its length, the egde is 9.3 cm. Hence, the surface area of the cube is calculated as

           Surface Area = 6*(edge)²
                                 = 6*(9.3 cm)²
           Surface Area = 518.94 square centimeters

5/7 is greater than 4/6 because 5/7 = 0.71 while 4/6 = 0.67