Carmen wants to add to her menu by selling BLT sandwiches. How much should she charge for the BLT if she would like to make 35%-40% profit on each BLT? Show how you know your pricing is correct.

Question

Costs for ingredients for 4 BLTs:
Bread $6.20
Bacon $4.25
Lettuce $1.25
Tomato $3.50
Chips $3.50

Answer 1

the $18.75 cost for 4 BLT's come out to $4.675 per sandwich
So, she needs to charge between
1.35 * 4.675 and 1.40 * 4.675

Answer 2

I am being told the answer is: between $7.40-$8.08. Just not sure how they came up with that.
Also the lettuce price should be $1.80.

Thank you again for the help.

Answer 3

so add 55 cents to the total for a sum of 19.30, or 4.925 per BLT
The sale price p must then satisfy
1.35 * 4.925 <= p <= 1.40 * 4.925

I also don't know how they got their answer.
7.40/1.35 = 5.48
8.08/1.40 = 5.77
Those should be the same value.