Grace and Jamal each bought notebooks for school. Grace bought 2 notebooks for $2.80 while Jamal bought 4 notebooks for $4.40. What was the unit price of each student’s notebooks?

Grace: $2.80; Jamal: $4.40

Grace: $2.00; Jamal: $4.00

Grace: $1.10; Jamal: $1.40

Grace: $1.40; Jamal: $1.10

To find the unit price for Grace and Jamal's notebooks, we need to divide the total cost by the number of notebooks.

For Grace:
Unit price = Total cost / Number of notebooks = $2.80 / 2 = $1.40

For Jamal:
Unit price = Total cost / Number of notebooks = $4.40 / 4 = $1.10

Therefore, Grace's unit price was $1.40 per notebook and Jamal's unit price was $1.10 per notebook.

So, the correct answer is:
Grace: $1.40; Jamal: $1.10