Answer:
The required power to represent the height of the tallest is 
Step-by-step explanation:
Consider the provided information.
The smallest figurine in a gift shop is 2 inches tall.
It is given that the height of each figurine is twice the height of the previous figurine.
The smallest figurine is 2 inches tall.
The second smallest figurine height should be:
2 × 2 = 2² = 4 inches tall
The third smallest figurine height should be:
2 × 2 × 2 = 2³ = 8 inches tall
The forth smallest figurine height should be:
2 × 2 × 2 × 2=
= 16 inches tall
Let say there are n figurine in the gift shop. So the height of the tallest figurine will be:
2 × 2 × 2 ......n times = 
Hence, the required power to represent the height of the tallest is 