Answer:
Due to the lower cost per plant, she should buy the small tray of plants.
Step-by-step explanation:
Finding the best value for money:
To find the best value for money, we find the price of each plant, dividing the cost by the number of plants.
Small tray:
30 plants costs 6.50.
6.50/30 = 0.2167
Each plant costs £0.2167
Medium tray:
40 plants costs 8.95.
8.95/40 = 0.22375
Each plant costs £0.22375
Large tray:
50 plants costs 10.99
10.99/50 = 0.2198
Each plant costs £0.2198
Due to the lower cost per plant, she should buy the small tray of plants.