5. Assume food prices have risen about 4% per year for the last five years.a. If a gallon of milk cost $2 five years ago, what does it cost today?b. If a gallon of milk cost Sx five years ago, write an expression for its cost today.c. If a gallon of milk costs $3.50 now, what did it cost five years ago? Write and solvean equation to answer the question.Let xcost of a gallon of milk five years agod. Ifmilk prices increase 4% per year for five years, what is the overall percentncrease

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Given that food prices risen about 4% per year for the last five years.

Given that gallon of milk cost $2 five years ago, we need to find its cost today.

If a quantity a₀ is increased by i% every year and then after n years it is accumulated to a_n. then a_n is given by the below mentioned formula and we know here given that every year 4% increase in price of milk per gallon, so i = 4% and five years ago price is $2. So a₀=2. Here we need to find the price after 5 years so n = 5. By substituting this values we can calcualte the price of milk after 5 years.

We get price of gallon of milk after 5 years if the price is raising from 2$ at 4% per year is $2.43 (after rounding upto two decimals).

Given a gallon of milk cost x$ five years ago and it increases at rate 4% per year for the last five years.

If a quantity a0 is increased by i% every year and then after n years it is accumulated to an. then an is given by the below mentioned formula and here given that every year 4% increase in price of milk per gallon, so i = 4% and five years ago price is $x. So a0...