document.write( "Question 998549: For the sequence given by an=4n+5, answer the following:\r
\n" ); document.write( "\n" ); document.write( "a. Find the first five terms\r
\n" ); document.write( "\n" ); document.write( "b. Find the sum of the first 25 terms
\n" ); document.write( "

Algebra.Com's Answer #616324 by fractalier(6550)\"\" \"About 
You can put this solution on YOUR website!
Given the rule an=4n+5, the first five terms are for n=1 to n=5...
\n" ); document.write( "9,13,17,21,25
\n" ); document.write( "The sum of the first twenty-five terms is found by (a25 = 105)...
\n" ); document.write( "Sn = (n/2)(a1 + an) = (25/2)(9 + 105) = 1425
\n" ); document.write( "
\n" );