Question 623099
Substitute n, the number in the sequence, into the formula.<P>
The 4th place, n=4, is 4(5)/2 = 10.<br>
5th place, n=5, is 5(6)/2 = 15.<br>
6th place, n=6, is 6(7)/2 = 21.<br>
7th place, n=7, is 7(8)/2 = 28.<br>
8th place, n=8, is 8(9)/2 = 36.<br>
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