Solve the following word problem. use x for the unknown value. the average cost of a car in 2013 is said to be 5 less than twice the cost of a car in 2009. if the average cost of a car in 2013 is $25,000. how much was the average cost of a car in 2009?

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.