Answer: see below.
Explanation:
Your question is lacking the necessary parameters, so I will assume the values to enable me to solve it:
Mass of football = 20 grams
Volume of football = 100[tex]cm^{3}[/tex]
To find the density of the football;
Density is simply mass per unit volume of an object such as a football.
Mathematically, the density of an object is given by the formula;
Density=[tex]\frac{Mass}{Volume}[/tex]
Substituting the assumed values into the above formula;
Density=[tex]\frac{20}{100}[/tex]
Density= 0.2g/[tex]cm^{3}[/tex]
Therefore, the density of the football is 0.2g/[tex]cm^{3}[/tex] .
For you: You can substitute the appropriate parameters into the formula to get the exact density of the ball.