Final answer:
C) Plan A has the better deal because it is $30 less expensive than Plan B.
Step-by-step explanation:
Plan A has a sale price of $800 and a coupon for 10% off, while Plan B has a retail price of $800 with a $50 off coupon. To determine which plan has the better deal, we need to compare the final prices of both plans.
For Plan A, the discount would be 10% of $800, which is $80. So, the final price for Plan A would be $800 - $80 = $720.
For Plan B, the discount would be $50. So, the final price for Plan B would be $800 - $50 = $750.
Therefore, Plan A has the better deal because it is $30 less expensive than Plan B.