Question 25975
First you can find the cost of each pen using the given information: 5 pens cost $2.22.

{{{ 2.22/5 }}} = {{{0.44 }}}

So now we know each pen cost $0.44.

Now since they purchased 4 pencils and 2 pens and recieved a total of $1.08, we will find the cost of each pencil.

Suppose the cost of pencils is "x".

{{{ 4x + 2(0.44) = 1.08 }}}  The 2(0.44) is the cost of 2 pens @ $0.44 each.

{{{ 4x + 0.88 = 1.08 }}}

{{{ 4x = 0.2 }}}  <---- Subtract 0.88 from each side.

{{{ x = 0.05 }}}

The Answer: (1) Pen cost $0.88
            (1) Pencil cost $0.05