Answer:
2.75
Explanation:
55-11(4)=2.75
2.75+11=13.75
13.75x4=55
y = 11/4 or 2 3/4 units.
Perimeter = 4 * length of 1 side
= 4(y + 11) , so
4(y + 11) = 55
4y + 44 = 55
4y = 11
y = 11/4 (answer).
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