Samuel orders four DVDs from an online music store. Each DVD costs $9.11. He has a 25% discount code, and sales tax is 7%. Round sales tax amounts to the nearest cent. What is the total cost of his order?

7.31

Step-by-step explanation: \

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answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.