What is the last term of the following arithmetic series?
(this has 7 seven terms...)
What is the common ratio of the indicated geometric sequence?
What is the sum of the following series?
Find the sum of the infinite geometric series, if it exists.
(just type the answer...if it doesn't exist type 'does not exist')
My school's auditorium has 42 rows. The first row has 16 seats, the second row has 18 seats, and the third row has 20 seats. Assuming the pattern continues, how many seats are in the ampitheater?
A group of farm animals are lined up by rows. The first row has 7 animals, and each row after the first has 3 more animals than the previous row. A new group of 67 animals need to be placed into the correct row. In which row will they be placed?
What is
for the arithmetic series described?