There is a chain nailed to the wall. the chain is 10 feet long and the center of the chain dips down 5 feet from where each side of the chain is nailed to the wall. how far are the 2 ends of chain from each other?
(no need for right answers! )

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

If the line in the graph is shifted up two units which is the equation of the new line

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?