How do you do 20 / 4/5

25

Step-by-step explanation:

you can write this equation as 20 ÷

so change the division sign to multiplication by flipping the divisor ( )

this means you now have 20 x

so you can simplify 20 and 4, this makes the 4 into a 1 and the 20 into a 5

you now have 5 x

this is the same thing as 5 x 5

multiply it, and you can see that the answer is 25

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.