Eva is at a sushi restaurant. She ordered 2 pieces of squid for a total of $3.50, 1 piece of eel for $3.25, 3 pieces of tuna for a total of $6.75, and 4 pieces of crab for $8.00. Which list shows the unit cost of each pieces of sushi from least to greatest?

2 pieces of squid = $3.50

Therefore 1 piece of squid = $1.75 (3.50:2)

1 piece of eel = $3.25

3 pieces of tuna = $6.75

Therefore 1 piece of tuna = $2.25 (6.75:3)

4 pieces of crab = $8.00

Therefore 1 piece of crab = $2 (8:4)

Put them in order of price and you get

$1.75, $2, $2.25, $3.25

squid, crab, tuna, eel