Jaxon has two bins. The bins are shaped like cubes with dimensions shown. Write an algebraic expression that Jaxon can use to find the total volume, in cubic inches, of the two bins for any value x. Then find the total volume of bins when x=4. What is the Algebraic expressions when x DOES NOT equal 4?

Two farmers pay a total rent of $140 for a pasture. the first farmer placed $4 oxen in the pasture, and the second farmer placed $30 sheep in the pasture. the farmers split the rent based on the proportion of the pasture eaten by their own animals that month. how much should the first farmer pay, if 1 ox eats as much as 10 sheep in a month?