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kirill115 [55]
3 years ago
12

I dont understand #12 and #13 plz help me​

Mathematics
1 answer:
worty [1.4K]3 years ago
8 0

12) 30 - x = 25

30 - 25 = x

5 = x

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Whats the area of a square that is 9m and 9m? marking branliest.
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a_5=a_8=a_{11}=a_{14}=...=5\\ \\a_6=a_9=a_{12}=a_{15}=...=8\\ \\a_7=a_{10}=a_{13}=a_{16}=...=11

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a_{3k-1}=5\\ \\a_{3k}=8\\ \\a_{3k+1}=11

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b

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