Final answer:
The cost of 2 3/4 lbs of lunch meat is $6.60.
Step-by-step explanation:
To find the cost of 2 3/4 lbs of lunch meat, we can set up a proportion using the information given. We know that 1 2/5 lbs of lunch meat costs $3.36. Let's find the cost per pound first.
1 2/5 lbs = 7/5 lbs. So, the cost per pound is $3.36 ÷ (7/5) = $2.40.
Now, we can find the cost of 2 3/4 lbs of lunch meat. 2 3/4 lbs = 11/4 lbs. So, the cost of 2 3/4 lbs of lunch meat is $2.40 × (11/4) = $6.60.