Final answer:
To find the amount Veronica still owes for the scanner, subtract the down payment, student discount, and her father's contribution from the original price. Veronica still owes $185 for the scanner.
Step-by-step explanation:
To find the amount Veronica still owes for the scanner, we need to subtract the down payment, student discount, and her father's contribution from the original price.
- Subtract the down payment: $400 - $20 = $380
- Subtract the student discount: $380 - $10 = $370
- Calculate her father's contribution: $370 / 2 = $185
Therefore, Veronica still owes $185 for the scanner.