Answers to Math Exercises & Math Problems: Arithmetic Sequence |
d = 3
8, 13, 18, 23, 28, 33, 38
a) a = 18 cm; b = 24 cm; c = 30 cm
a) sn = n2
p = 9d + d2
There are 23 rows of seats in the cinema.
During the day before the exam the student will have to handle 14 pages of math textbook.
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