Final answer:
The expressions representing the total cost of the vehicle with the rebate or percent discount, why Jose might have trouble answering the question, and the total cost for the Toyota Corolla.
Step-by-step explanation:
1. The two expressions that represent the total cost of the vehicle with the rebate x are:
2. Jose might have trouble answering this question because he doesn't know the exact price of the vehicle yet. The information that would help him answer would be the price of the vehicle he is interested in.
3. Since the price of the Toyota Corolla is $7800, Jose should choose the rebate deal. His total cost will be $7800 - $350 = $7450.