Which sets of ordered pairs represent relations that are functions? you may choose more than one correct answer.

a. {(1, 0), (2, 0), (3, 0), (4, 0)}
b. {(2, 3), (2, 4), (2, 5), (2, 6)}
c. {(1, 1), (2, 2), (3, 3), (4, 4)}
d. {(1, 3), (-1, 4), (1, 4), (-1, 3)}
e. {(6, -6), (-6, 6), (5, -5), (-5, 5)}

Farnesene is a sesquiterpene. how many different isomers arising from double-bond isomerizations are possible? g

Empty box + box + empty box fill in the box is equal to 30 how

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min