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72
An arithmetic sequence with common difference of 2.
The mean is 83.
1.566
87
The average is 71.6
My '83 holds 12 gallons per side, I believe.
119. un = (-n4 + 15n3 - 77n2 + 225n + 192)/6
My TI-83 Plus gives the following result 266=7.378697629E19
82-83 yz 100 holds 600 ml,hope that helps
172 miles following U.S. 83 NORTH.
83 kilometres (51 miles) following N18.