Answer:
$2700 supplies in hand
$3600 Supplies expense
Step-by-step explanation:
As you can see in question data Sheldon has already counted the supplies in hand so, we only have to calculate supplies expense by doing some minor workings
WORKINGS
Supplies Expense = Opening + purchases - payment made
Supplies Expense = $1600 + $4700 - $2500
Supplies Expense = $3600