4x+20+2x+6 is what you get when you distribute, just group the similar ones together and get 6x+26, that's the answer <em><u>6x+26</u></em><em><u /></em><u />
A <em>parameter </em>is a number describing a whole population (e.g., population mean), while a <em>statistic </em>is a number describing a sample (e.g., the sample mean).
That is really hard to see