Answer: 1. What is the 20th item of arithmetic progression 1 6, 1 1,16 ... How much is item 35? 25 1 that's it

What is the first item in arithmetic progression?

2. arithmetic progression is known as 2, 5, 8, 1 1, 14…, which is Q 47?

3. If the fourth term of arithmetic progression is 2 1 and the sixth term is 33, find its eighth term.

4. It is known that the tolerance of arithmetic progression is 4, the last term is 280, and the series * * * is 25. The first item in this series is multiple.

Less? What is the number 16 of this series?

5. The small theater has 40 rows of seats, each row has 2 more seats than the front row, and the last row has 120 seats.

Seats. How many seats are there in the first row? How many seats are there in the 25th row?

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