The number of seats in the first row of a concert hall is 6. Th second row has 9 seats, the third row has 12 seats, and the four
th row has 15 seats. How many seats will be in the eighth row?
2 answers:
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Here we go ~
The air plane descends 15 feels every 1.45 seconds, so it's unit rate is :
Now we have to calculate the descent in 3.5 minutes ~
So, the airplane descends 2172.41 feels in three and a half minutes ~