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ACT
ACT Math Section

Calculating Sequence Ratio

Very Hard Preparing For Higher Math Number And Quantity

A sequence is generated by the formula

$$ a_n = 2^n + 3 $$

for each positive integer $n$. Calculate the value of

$$\frac{a_{10}}{a_5} $$

and provide your answer as a decimal in the grid-in section.

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