Question

there is an auditorium with 30 rows of seats. there are 15 seats in the first row, 1i in the second, 21 in the third row and so on, find the number of seats in the 20th row, what is the total number of seats in the auditorium​

Answer 1

Answer:

An auditorium has 50 rows of seats. The first row has 20 seats, the second row has 21, the third row has 22 seats, and so on, each row having one more seat than the previous row. How many seats are there all together?a. write 2 different expressions for the total number of seats in the auditorium. One expression should...

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