1.

Given the table below: No. of Songs 1 3 5 7 9 Practice time(hours) 7 21 35 49 ? How much time (hours) is required to practice 9 songs?

Answer»

Given the table below:

No. of Songs 1 3 5 7 9
Practice time(hours) 7 21 35 49 ?
How much time (hours) is required to practice 9 songs?


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