Answer:
In city C, it will be less expensive to buy a $30 sweater.
Step-by-step explanation:
Since the purchase value is fixed, so the price of a $30 sweater after sales tax will be less in that city where the rate of sales tax is less.
From the given four cities with different sales tax, city C has a lesser sales tax i.e. 2.9%.
Therefore, in city C, it will be less expensive to buy a $30 sweater and the after-tax price of the sweater will be [tex]30 \times (1 + \frac{2.9}{100}) = 30.87[/tex] dollars. (Answer)
