125 = 5 * 5 * 5 = 5³
90 = 2 * 3 * 3 * 5 = 2 * 3² * 5
92 = 2 * 2 * 23 = 2² * 23
<span>
<span><span>
<span>
<span>
<span><span>
<span>
Establish your
Criteria: Willie needs to consider choosing a cheaper mode of
transportation.
Choose 2 to 4
good options: Willie could take the bus or he could take a cab to the
school trip.
<span>Find the pros and cons: Taking a bus
is much cheaper than paying his
friend to take him, but the trip will be take longer, and you could meet
some very weird people on the bus. Taking a cab will be quicker than his
friend or the bus, but it will be more costly.</span></span>
</span>
</span></span>
</span>
</span>
</span></span>
if the sphere has a diameter of 5, then its radius is half that, or 2.5.
![\bf \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=2.5 \end{cases}\implies V=\cfrac{4\pi (2.5)^3}{3}\implies V=\cfrac{62.5\pi }{3} \\\\\\ V\approx 65.44984694978736\implies V=\stackrel{\textit{rounded up}}{65.45}](https://tex.z-dn.net/?f=%5Cbf%20%5Ctextit%7Bvolume%20of%20a%20sphere%7D%5C%5C%5C%5C%20V%3D%5Ccfrac%7B4%5Cpi%20r%5E3%7D%7B3%7D~~%20%5Cbegin%7Bcases%7D%20r%3Dradius%5C%5C%5B-0.5em%5D%20%5Chrulefill%5C%5C%20r%3D2.5%20%5Cend%7Bcases%7D%5Cimplies%20V%3D%5Ccfrac%7B4%5Cpi%20%282.5%29%5E3%7D%7B3%7D%5Cimplies%20V%3D%5Ccfrac%7B62.5%5Cpi%20%7D%7B3%7D%20%5C%5C%5C%5C%5C%5C%20V%5Capprox%2065.44984694978736%5Cimplies%20V%3D%5Cstackrel%7B%5Ctextit%7Brounded%20up%7D%7D%7B65.45%7D)
-9<0
Because 9 is negative, it's value is less than 0
