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7. A dressmaker has a 5m length of
ribbon. She uses 480 mm of the
ribbon. What length is left?
a. 20 mm
b. 430 mm
c. 475 mm
d. 4520 mm


Sagot :

Step-by-step explanation:

As we know ..

1meter=1000 millimeter

5m=5000mm

she uses 480mm

so,5000mm - 480mm = 4520mm.

answer is D