Suppose a gardener produces both green bean and corn in her garden. if she must give up 14 bushels of corn to get 5 bushels of green beans, then her opportunity cost of 1 bushel of green beans is
(a) 0.36 bushel of corn.
(b) 2.4 bushels of corn.
(c) 2.8 bushels of corn.
(d) 70 bushels of corn.

(C) 2.8 bushels of corn.

Explanation:

We are provided that gardener produces corn and green beans.

The gardener can either produce 14 bushels of corn,

or,

5 bushels of green beans.

That means for each bushel of corn = 5/14 = 0.36 bushel of green beans.

Thus for the asked information,

And for every bushel of green beans = 14/5 = 2.8 bushels of corn.

Correct option is

(C) 2.8 bushels of corn.

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.