6 Which expression correctly gives the perimeter of the triangle below?
3.&r - 5.22
3.5x +4.7y
4.9y+8.62
A 7.3x + 9.67 +3.4z
B 7.32 +9.67 – 3.4z
7.32 +8.6y +3.4z
D 7.32 +9.6y + 13.8z
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