The first row of a section in a concert hall has 20 seats. the second row has 21 seats. the third row has 22 seats. this pattern continues and this section has 12 rows. how many seats are in this section?

The numbers adding are +1. SO

20+12=32.

There are 32 seats in the 12th row.

306 seats total are in this section. I took the test.

Step-by-step explanation:

a and c

step-by-step explanation:

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6