What is agrculture and it means​

Agriculture is the science, the practice of cultivating the soil, art, producing crops, raising livestock, and in varying degrees the preparation and marketing of the resulting products cleared the land to use for agriculture.

This is what I found during my research and I hope this helps. Correct me if I am incorrect! Have a good one.

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this