Respuesta :

Timmartian2

Answer:

I don't know what it means by "models the sequence" yet, but here is an equation describing the sequence if it helps any: x2 + (x.5)

Answer:

The first term is 80 and the common ratio is 2.5 because every term is being multiplied by 2.5.  to figure this out when it is not obvious, divide the 2nd term by the first term.  the equation is   y = 80(2.5)^x

Step-by-step explanation:

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