My parents started a small farm after they retired. On their farm, they have chickens and pigs. In total, there are 40 animal legs among the chickens and the pigs, and there are 16 animal heads. How many chickens do my parents have?

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?