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A builder needs 2 hinges to install

each door. The expression 2d gives the
number of hinges needed to install d
doors. Which best describes the value
of the variable d?
A any positive whole number
B a single unknown number
c any positive number
D any integer

User Arseny
by
8.4k points

1 Answer

4 votes

Answer:

A

Explanation:

User Cadilac
by
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