Order the numbers from least to greatest
0.2, -1.7, -1
-2 3/4, -3/5, 1 3/4
-0.5, -1 2/3,-2.7

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.

check out this website

you will enjoy it as it give interesting things to look up or do!