ANSWER:-
Yes,
There is a direct proportional relationship
between the cost of items before tax and the
cost of items after tax.
5.0
STEP-BY-STEP 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, the cost of items before tax is directly
proportional to the 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 the cost of items
before tax and cost of items after tax