Please answer all of them even the ones I have answered I am not sure on. Thank you

Which of the following statement is FALSE regarding Predicates? Predicates are expressions that are either TRUE or FALSE Predicates have an indeterminate truth value until the value for the variable is provided A predicate is essentially a proposition with a variable Predicates can be thought of as propsitional functions, a Proposition, P, with a variable, x, written P(x) Which of the following predicates is true over the set of real numbers, R. xR,x2R!xR,x3/RxR,x1RxR,3xR xR,yR such that y2=x Predicates require a variable and that variable must be uniquely defined come from a clearly defined set of values be true for multiple values be defined over all possible sets