Answer:
$9
Explanation:
Let
be the price of each shrub.
- 4 shrubs at
each costs
dollars - Potting soil is $17.50
Hence, total cost is the expression

We know that total bill is $53.50, so we can equate it to the expression:

This equation can be solved for
to find cost of each shrub.
Solving for
gives us:

So price of each shrub is $9