document.write( "Question 989718: The price of a ballpen is be pesos. A notebook costs 15 more than a ballpe. How much do 9 ballpens and 16 notebooks cost?
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Algebra.Com's Answer #610035 by macston(5194)\"\" \"About 
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\n" ); document.write( "b=cost of pen; b+15=cost of notebook
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\n" ); document.write( "Total cost=9(b)+16(b+15)
\n" ); document.write( "Total cost=9b+16b+240
\n" ); document.write( "Total cost=25b+240
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