What are the outliers???

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

What is 140% of 25? because i need

Which function has an inverse function? a. f(x)= |x+3|/5 b. f(x)= x^5-3 c. f(x)= x^4/7+27 d. f(x)= 1/x²