a calculator costs 12.99. if its on sale for 20% off and sales tax is 6.25% what is the final cost of the calculator?
2 answers:
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Answer:
The value of the computer is given by .
Step-by-step explanation:
A computer sells for $900.
If the price of the computer loses 30% of its value per year, then it is compounded every year.
Now, the price of the computer t years after it is sold will be
........... (1)
Therefore, the value of the computer is given by the above equation (1). (Answer)