Snoopy has a spoon that measures out 2 3/4 cups of sugar with every scoop. Snoopy takes 5 1/3 scoops with this spoon. How many cups of sugar does Snoopy scoop out?

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?