Answer:
$6.49
Explanation:
1 lb = 16 oz
His salad weighs 1 lb, 8 ounces which is the same as 16 ounces plus 8 ounces.
8 ounces cost $2.49
His salad weighs 16 ounces more than 8 ounces, so in addition to the $2.49, he needs to pay $0.25 per ounce for 16 extra ounces.
16 * 0.25 = $4.00
Total cost = $2.49 + $4.00 = $6.49