Answer:
45
Step-by-step explanation:
It's 45 because both numbers can be divided into that number and its the largest.
14
Answer: electricity can be used to create magnetism
20
x = ±2sqrt(15)
x^2 = 60
Take the square root of each side
sqrt(x^2) = ±sqrt(60)
x = ±sqrt(60)
x = ±sqrt(4 *15)