The science show sets up chairs in rows with 8 seats in each row. how many rows will need to be set up if 456 people are expected to attend?

Ineed i been stuck on this question since yesterday

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. david estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x.

Pls never taught i’m really confused and i rlly need