I√5
Find the square of the imaginary number.

=  

Step-by-step explanation:

First, reorder the terms:

Then, find the complex conjugate (a pure imaginary number is its opposite):

we'll this would mean that the dunk tank and the bounce house are the same for 20 hours because the 2 represents that the two activities, and the 20 represents the amount of hours they both are. so with this said, it means that the answer is c. the costs for a dunk tank and bounce house are the same for 20 hours.

c.the costs for a dunk tank and bounce house are the same for 20 hours.

hope this .