Answer:
Janet can 2 4/10 of a neckalace in an hour.
Step-by-step explanation:
20 minutes is 1/3 of 60 minutes so...
4/5 x 3 = 12/5 = 2 2/5 = 2 4/10
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Answer:

Step-by-step explanation:
step 1
Convert mixed number to an improper fraction

step 2
Using proportion

step 3
Convert to mixed number

What does the last one says
40 years if the rate stays the same