What is y fewer than 19 in algebraic expression

From three chocolate bars we can make at most five chocolate rabbits and have some leftover. what is the greatest possible number of chocolate rabbits that can be made from sixteen chocolate bars (maybe with some leftover)?

One integer is 8 times another. if the product is 72, then find the integers

Bobby bought 1.12 pounds of turkey at a cost of 2.50 per pound. carla bought 1.4 pounds of turkey at a cost of 2.20 per pound. who spent more and by much?