Answer: 
d≈8.21 g/cm^3
Explanation:
The density can be found by dividing the mass by the volume. 
d=m/v
The mass is 62.4 grams and the volume is 7.6 cubic centimeters. 
m=62.4 g 
v=7.6 cm^3
Substitute the values into the formula. 
d=62.4 g/7.6 cm^3
Divide 
d= 8.210526315789474 g/cm^3 
Round to the nearest hundredth. The 0 in the thousandth place tells us to leave the 1 in the hundredth place. 
d≈ 8.21 g/cm^3
The density of the object is about 8.21 grams per cubic centimeter.