To make a pizza, I want to pick one type of crust, 1 type of sauce, and 1 type of topping. There are 3 crust types, 3 sauce type
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Answer:
Step-by-step explanation:
The sequence above is a geometric sequence.
The common ratio (r) =
The common ratio < 1, therefore, the formula for the sum of nth terms of the sequence would be:
a1 = 3
r = -2
n = 6
Plug in the values into the formula