Please answer math question, (pythagorean theorem)

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?

Point s lies between points r and t on . if rt is 10 centimeters long, what is st? 2 centimeters 4 centimeters 6 centimeters 8 centimeters