Question 892030
Let {{{ C }}} = the cost of gifts for 5 friends
{{{ x }}} = number of paperback books
{{{ 5 - x }}} = number of hardcover books
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{{{ C = 6.95x + 24.99*( 5 - x ) }}}
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If {{{ x = 3 }}}
{{{ C = 6.95*3 + 24.99*( 5 - 3 ) }}}
{{{ C = 20.85 + 24.99*2 }}}
{{{ C = 20.85 + 49.98 }}}
{{{ C = 70.83 }}}
The cost of the 5 gifts is $70.83