The complete question with diagram is attached
Answer:
($3.00, 420 lbs) and ($2.10, 510 lbs)
Explanation:
A shift in demand occurs when the quantity of a product consumers wants changes at all price levels.
A shift to the right indicates an increase in quantity demanded at all prices, while a shift to the left indicates a reduction in quantity demanded at all prices.
In the given scenario there is a shift in demand to the right with increase in 20 lbs of onions.
So at every price level there will be an increase in quantity demanded by 20 lbs.
According to the diagram at price $3 quantity initially demanded was 400 lbs. With the demand shift it will now be 400 + 20 = 420 lbs.
At price $2.10 demand was initially 490 lbs now it will be 490 + 20 = 510 lbs
