Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?
Let d be the domain and let Ζ 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} Ζ(x) = temperature in seattle washington on that date