Final answer:
The glasses at Vision Source are 20% more expensive than ABC Eye. If the glasses cost $85 at ABC Eye, you would pay $17 more at Vision Source, making the total price $102.
Step-by-step explanation:
To find out how much more you would pay at Vision Source compared to ABC Eye, we can use the given information that the glasses at Vision Source are 20% more than the price at ABC Eye.
First, let's calculate the price of the glasses at Vision Source. We can do this by multiplying the price at ABC Eye ($85) by 1.20 (1 + 20%).
Price at Vision Source = $85 x 1.20 = $102.
Therefore, you would pay $102 at Vision Source, which is $17 more compared to ABC Eye.