Final answer:
The cost of the chicken breast after 4 years will be $13.77.
Step-by-step explanation:
To find the cost of the chicken breast after 4 years, we need to calculate the price increase at each year. The price increases by 4% each year, so we can use the formula:
New cost = Initial cost * (1 + 0.04)^n
where n is the number of years. Plugging in the values, we get:
New cost = $11.78 * (1 + 0.04)^4 = $11.78 * 1.04^4 = $11.78 * 1.16985856 = $13.77
Therefore, the cost of the chicken breast after 4 years will be $13.77.