Question

Data collected in the imaginary economy of kharkeez reveals that when the price of bork increased by 20%, the quantity of bork sold decreased by 15%

Answer 1

It is assumed that what is asked in this item is the rate of return of Kharkeez after an increase of bork price of 20% and then a decrease in selling price of 15%. The resulting function generated is 1.2x = k 0.85y. The increase is reflected on the addition of 20% (1.2) while the decrease is reflected on 1-0.15 equal to 0.85.