Answer:Yes,
There is a direct proportional relationship
between the cost of items before tax and the
cost of items after tax.
5.0
Explanation:
Given - A city has a 5% sales tax.
To find - Is there a proportional relationship
between the cost of items
before tax and the cost of items after
tax?
Proof
Yes, cost of items before tax is directly
proportional to cost of items after tax.
Reason
With the increase in the sales tax, there is
increase in the cost of items after tax, therefore,
there is a direct relation between cost of items
before tax and cost of items after tax.
Explanation: