Question

A small auditorium has 12 rows of seats. There are 10 seats in the first row and 15 seats in the second row. The number of seats in a row continues to increase by 5 with each additional row. What is the total number of seats in the auditorium?

Answer 1

10+15+20+25+30+35+40+45+50+55+60+65=450

There are 450 seats in the auditorium

*pst* Put as most brainliest