Respuesta :
Answer:
D
Step-by-step explanation:
It must be less than or equal to 60,000, so that leaves C and D.
From there we see that the small units (x) are 1,200 square feet, and the large units (y) are 2,200 square feet, thus 1,200x + 2,200y is less than or equal to 60,000
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