In a standard set of dominoes, a face of each domino has a line through the center, with 0 to 6 dots on each side of the line. E
1 answer:
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Answer:
- 57
Step-by-step explanation:
The n th term of an arithmetic sequence is
= a + (n - 1)d
where a is the first term and d the common difference
Here a = 13 and d = - 2.5, thus
= 13 + (28 × - 2.5) = 13 - 70 = - 57
