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A developer has land that has *x* feet of lake frontage.

The land is to be subdivided into lots, each of which is to have

either 80 feet or 100 feet of lake frontage. If 1/9 of the lots are

to have 80 feet of frontage each and the remaining 40 lots are to

have 100 feet of frontage each, what is the value of *x*

?

A 400

B 3,200

C 3,700

D 4,400

E 4,760

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