A restaurant operator in accra has found out that during the partial lockdown, if she sells a plate of her food for GHc20 each, she can sell 300 plates, but for each GHc 5 she raises the price, 10 less plates are sold. Draw a table relating 5 different price levels with their corresponding number of plates bought. Use your table to determine the price in GHc how much she should sell one plate to maximize her revenue