Rose went to a stationery shop. She purchased 2 packs of red pens, 4 packs of black pens,
and 3 packs of blue pens. The cost of each pack of pens was $2.50. The expression
$2.50 X 2 + $2.50 X 4 + $2.50 X 3 represents the total amount of money she spent on pens.
How can this expression be rewritten?