See attached picture for the answer:
50% off of 40.00 is 20.00. Plus your 25% coupon you would then pay $15.00.
The cost of a box of eggs = $1.20
So, the cost of 3 boxes of eggs = 
The cost of each jar of mayonnaise = $1.80
Let the cost of each loaf of bread = $'x'
So, the cost of 2 loaves of bread =
= $2x
Since, Barbara gives $10 note and receives a change of $1.60.
Therefore, she pays
for the given items.
Therefore, 



So, x = 1.5
Therefore, the cost of each loaf of bread is $1.50 not $1.40.
Answer:
10 years
Step-by-step explanation: