<PRE><B>Question 4783</B>
           wrenches sold     $/wrench      Total $
Wrenches     x                 $2.50          2.50x
Hammers      4x                $3.00        (4x)3.00
Total        ?                   --          $609.00

2.50x+(4x)3.00=609.00
2.50x+12x=609.00
14.50x=609.00
14.50x/14.50   609/14.50
x=42
4x=168</PRE>