Question 1040229
Let {{{ n }}} = number of Best of Radiohead albums sold
{{{ 330 - n }}} = number of King of Limbs albums sold
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{{{ 3168.8 = 12.96n + 8.96*( 330 - n ) }}}
{{{ 3168.8 = 12.96n + 2956.8 - 8.96n }}}
{{{ 4n = 212 }}}
{{{ n = 53 }}}
ITunes Sold 53The Best of Radiohead albums. 
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check:
{{{ 3168.8 = 12.96n + 8.96*( 330 - n ) }}}
{{{ 3168.8 = 12.96*53 + 8.96*( 330 - 53 ) }}}
You can finish check