Answer:
Least to Greatest:
Orange, Blue, Red, Green
Explanation:
To find the amount per square foot, you divide the amount by the number of square feet.
RED: 1.79/12.5 = .1432
BLUE: 5.29/40 = .13225
GREEN: 8.49/50 = .1698
ORANGE: 6.00/60 = .1
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