Respuesta :

Answer:

Part A = D

Part B = 5 and 50

Step-by-step explanation:

Part A:

area = 5*4x = 20x

so, [tex]100 \leq 20x \leq 1000[/tex]

Part B:

to leave it only by x, you divide both sides by 20

100/20 = 5, 1000/20 = 50

which [tex]5\leq x\leq 50[/tex]

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