The 20th term of an arithmetic sequence is 98, and the common difference is 6. determine the 63nd term.

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?