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A pair of shoes costs $41.99 and the state sales tax is 3%. Use the formula C=p +rp to find the total cost of the shoes, where C is the total cost, p is te price and r is the sales tax rate.
cost price of the shoes = $41.99
sales tax r = 3% of $41.99
= $ 1.26
The total cost price c = p+rp
c = $41.99+$1.26
c = $43.25