Point (5, -2) is reflected across the line y = x. Where is the new location?

What's the difference between: x≥0 and nonnegative integer. ?

Answer this 30 points and brainliest!

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary