1/6+2/3 (9-3/4)-1/2 can anyone solve this?

We just started the introduction into circles and i have no idea how to do this.

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.

You so much whoever answers with accuracy •the parent function of the graph of f(x) is the square root function, which was reflected across the x-axis. which of the following is the equation of f(x)?