What is the solution of the equation over the complex numbers?

x2+20=0

Enter your answers, as exact values, in the boxes.

30 slips of paper, numbered 1 to 5, are placed in a paper bag. One slip of paper is drawn at random. What is the probability of drawing an even number?

The imaginary monster Dracula is 574 years old, according to legend. Since that very first birthday long ago, when he happily blew out 1 candle on a cake decorated with drippy red frosting, how many birthday candles has he blown out in his whole

X+4=16 1&2 step equation

Find the greatest common factor. 4x3a2 + 4x2a3

50g in the ratio 3:2

What times 27equals 216

How many 2-inch segments are there in 12 feet

Find the absolute value of the complex number 4 + 4i

Add. (7t2+t+8) + (9t+1)

Adam has 4 apples. He shares 2 with a friend. How many apples does he have left?