How much will you pay for 5 pounds of shrimp if the cost is 2 pounds for $10.99?

2 lbs. = $10.99

$10.99 + $10.99 = $21.98 (4 lbs.)

To add one more pound you just half the 2 lb price and add to the 4 lb value. 

$10.99 / 2 = $5.45 (1 lb)

$5.45 (1 lb) + $21.98 (4 lb) = $27.43 (5 lb)

5 pounds of shrimp would cost $27.43.

2 • $10.99 = $21.98 + $5.49 = $27.47

its as simple as adding up what you do and saving what you dont until the end

The answer would be 484