An auditorium has 20 seats. there are 20 seats in the first row, 21 seats in the second row, 22 seats in the third row, and so on. how many seats are there in all 20 rows.

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

Find cot x if sin x cot x csc x = √2

Maren is buying carpet for her rectangular living room. the room is 4.8 yards wide and 5.2 yards long. how much carpet does she need to buy? enter your answer as a decimal in the box. yd2