Which expression can be used to convert 22 Australian dollars to US dollars? Assume 1.2 Australian dollars equals 1 US dollar.
$22 AUD X
1.2 USD
1 AUD
$22 AUD X
1 USD
1.2 AUD
$1.20 AUD X
1 USD
1.2 AUD
$1.20 AUD X
1.2 USD
1 AUD

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.

answer: -0.5 would be the most likley outcome

step-by-step explanation: