Keisaun was covering a square bulletin board with paper. One side of the bulletin board measure 3 feet.
How much paper did he need? (HINT: What is the area of the bulletin board?)

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.

the answer should be:

a. 3, 4, and 6

b. 18, 24, and 36

c. 4.8, 6.4, and 9.6

hope i

-lavira : )