A student has a container with a volume of 0.5 liter. She estimates the volume to be 0.6 liter. By what percent is the student's estimate off?
(Round to the nearest percent as needed.)

Consider u = {x|x is a negative real number}which is an empty set? o {x|x eu and x has a negative cube root}o {x|x eu and x has a negative square root}{x|x eu and x is equal to the product of a positive number and -1}{x|x eu and x is equal to the sum of one negative and one positive number?