I will mark brainliest and give all points (100pts)

If g^-1(x) is the inverse of g (x) which statement must be true

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?