Question 1076733
The pies came from the COOKING CLUB and from the CAFETERIA.


The club made x number of pies.
The pieces of pie ready to sell were  {{{4x+4*6=80}}}.


Watch the units carefully.
p pies;
4 pieces per pie;
{{{p(pies)*4(pieces/pie)}}}={{{(p)(4)pieces}}}