How to solve these 2 Math problems??????

Test Preparation
1

<p>(Remove the spaces)</p>

<p><a href="http://i.imgur"&gt;http://i.imgur&lt;/a>. com/k3gE5tR.png
Answer: 120</p>

<p><a href="http://i.imgur"&gt;http://i.imgur&lt;/a>. com/HYCO7zC.png
Answer: D</p>

2

<p>1) X=1 table. The ratio of 4person:6person has to be 1:1. Because it takes twice as many tables for a 6person, 6person=2x. 4person=x</p>

<p>2x+x=36 (#OFTABLES)</p>

<p>X=12</p>

<p>12<em>4+12</em>6=120</p>

<p>2) Q=if radius a
What if radius 2a? a is being cubed
a^3=a^3
(2a)^3=(8a)^3</p>

<p>the difference between a and 2a as radius is a multiple of 8</p>

<p>Q*8=8Q</p>