Selina wants to cover the loss of potential damages to her house in case of a natural calamity, such as a tornado. So, she should purchase a insurance policy. She is also quite concerned about her dog’s health. To be on the safe side, she should also buy a insurance policy.

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

using pemdas, (order of operations) you'll see the answer is 24.