Use addition to solve the linear system of equations x - y = 4 x + 2y = 4

The local farm is advertising a special on fresh picked peaches. the farm charges $4.25 to pick your own peck of peaches and $3.50 for each additional peck you pick. write an equation for the total cost of peaches in terms of the number of pecks. deine your variables. how much does it cost to pick 3 pecks of peaches?

How do i do this activity, is appreciated

What is the greater volume 72 quarts or 23 gallons