Hello, I need help with 4 math slides. it's due in half an hour and I have no idea what to do. Please help me

Using the formula for the volume of the cone, we have:
[tex]\begin{gathered} V=\frac{1}{3}\pi\cdot r^2\cdot h \\ V=\frac{1}{3}\pi\cdot(0.75)^2\cdot(2)\text{ in}^3\text{ (Replacing r=0.75 in, h= 2 in) } \\ V=0.75\text{ in}^3 \end{gathered}[/tex]