It costs $30 to buy 2 tickets, $60 to buy 4 tickets, and $120 to buy 8 tickets, what is the cost of 7 tickets?
1 answer:
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Answer:
Choice D is correct
Step-by-step explanation:
The sequence representing the number of raccoons;
8, 24, 72
is simply but a geometric sequence with first term 8 and common ratio 3.
The formula for the n-th term of a geometric sequence with first term x and common ration r is;
In the given case, x = 8 and r = 3
We substitute these values in the above formula;