Answer:
40 steps downwards
Step-by-step explanation:
Here, this website explains it perfectly
Step-by-step explanation:
https://www.k5learning.com/blog/subtracting-positive-and-negative-numbers
12-10=2, 4/2=2, 5-2=3, 3*3=9, 4+9=13
Answer:
A
Step-by-step explanation:
i stands for square root of negative 1. If you multiple i and square root of 23 you will end up with the original