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Answer:

0.48 ; 6.8571428%

Step-by-step explanation:

Given that:

Cost of item = $7

Cost of item including sales tax = $7.48

The sales tax = (cost of item including sales tax - cost of item)

Sales tax = $7.48 - $7 = $0.48

Sales tax percent :

Let sales tax percent = x

x% of item cost = sales tax

x/100 * 7 = 0.48

0.01x * 7 = 0.48

0.07x = 0.48

x = 0.48 / 0.07

x = 6.8571428

Sales tax percent = about 6.858

Answer:

.069 (6.9%)

Step-by-step explanation:

7.48-7.00=.48 sales tax

.48/7.00=.069 sales tax rate or 6.9%