Mathematics, 20.07.2019 07:10, zurfluhe

Samuel paid $9.10, including tax, for a dog collar. before tax, the original price of the collar was $8.75. what was the sales tax rate? let r represent the rate as a decimal. complete the equation that represents the problem. (hint: the original price of the collar plus the amount of tax equals the total cost including tax.)

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Samuel paid $9.10, including tax, for a dog collar. before tax, the original price of the collar was...