<span>6.92820323028 is your </span>answer.
Multiply r^2+7r+10/3 by 3r-30/r^2-5r-50
<span>=( r^2+7r+10)/3 (3r-30)/(r^2-5r-50) </span>
<span>=(r+2)(r+5)/3 3(r+10)/ (r-10)(r+5) </span>
<span>=3 (r+2)(r+5)(r+10)/3(r-10)(r+5) </span>
<span>=(r+2)(r+10)/(r-10)</span>
The cylinder and sphere !!!!
If you are asking for the price, then the jeans would cost $32
V=BH/3
V=(4)(6)/3
V=(24)/3
V=8
