<p>page 842 #13. i have no idea what they'r even asking me......</p>
<p>first term is 20. </p>
<p>20, 8, 14, 11, 12.5</p>
<p>after 20 and 8, the nextt number is the average of the 2 numebrs before it. So if yoiu keep doing this, first term that isnt whole numebr is 12.5</p>
<p>thank u so much! i thought they meant the VERY FIRST term in the sequence. i'm like, u already gave it to me, it's 20! the first term is 20! god i hate those questions sometimes</p>
<p>you just divide the two previous terms by two,</p>
<p>you are given 20, 8</p>
<p>so the sequence would be:</p>
<p>20,8,14,11,12.5</p>
<p>12.5 is not an integer, so it's the answer</p>