Ineed an answer asap,

i can't type some of the signs so i just took a pic of the question

The expression 42 plus 57 shows how much money nate spent at a store .which expression also shows how much money nate spend

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?