kelly is knitting a scarf for her brother. It took 1/3 hour to knit 3/8 foot of the scarf. How fast is kelly's knitting speed, in feet per hour?

9/8 per hour

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Step-by-step explanation:

Unit rate defined as the rates are expressed as a quantity 1 such as 4 meter per seconds or 4 miles per hour.

As per the statement:

Kelly is knitting a scarf for her brother. it took her 1/3 hour to knit 3/8 foot of the scarf.

She took /3 hour to knit 3/8 foot of the scarf.  Therefore, 9/8 feet per hour fast is Kelly's knitting speed.

step-by-step explanation:

the answer is ! ?