Find the measure of each labeled angle

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

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

When is g(x) = 0 for the function g(x) = 5.23x + 4?