A factory uses 3/8 of a barrel of raisins in each batch of granola bars. Yesterday the factory used 3/4 of a barrel of raisins. How many batches of granola bars did the factory make yesterday

Let d be the domain and let ƒ be the possible function. determine if the relation is an example of a function. d = {x| x is a date, expressed in day/month/year} ƒ(x) = temperature in seattle washington on that date