(Will give brainiest)5y - x = 104x - 4y = 112 = 6x + 3y
1 answer:
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Answer:
f(n)= 5 · 4
Step-by-step explanation:
You use the explicit formula for geometric sequence. The five is the firat term and is placed correctly. The 4 is the rate of change, because if you multiply 5 by 4 you get 20 and so on.