Final answer:
The final cost of the $1,000 iPhone before activation is $1,082.50.
Step-by-step explanation:
To find the final cost of the iPhone before activation, we need to calculate the amount of sales tax. The sales tax rate in Houston is 8.25%. To calculate the tax amount, multiply $1,000 by 8.25% (or 0.0825). This gives us $82.50 in sales tax. Next, we add the sales tax to the original price of the iPhone: $1,000 + $82.50 = $1,082.50.Therefore, the final cost of the iPhone before activation is $1,082.50 (option a).