Answer:
60
Step-by-step explanation:
60 jdfjbdjdjdjd ah inebauwkwhiwiwnais
C. 10–15, 15–20, 20–25, 25–30, 30–35
C
(x-3)+7
an = (1 + 2·(n - 1))/2^(n - 1) = 2^(1 - n)·(2·n - 1)
sn = 6 - 2·0.5^n·(2·n + 3)
