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2) Students were asked to write a formula for the length of a rectangle
by using the formula for its perimeter, p = 2l+2w. Three of their
responses are shown below.
1
II.
III.
l = 1/2 p-w
€ = 1/(p-210)
=P-2w
2
Which responses are correct?
(1) I and II, only
(2) II and III, only
(3) I and III, only
(4) I, II, and III



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