If x is an odd number , write a expression for the odd number that comes directly before x

What is the ratio fraction form of 25: 9

Which of the following choices gives you a slope of 3?

Which statement is true about the function f(x)= square root -x ? the domain of the graph is all real numbers. the range of the graph is all real numbers. the domain of the graph is all real numbers less than or equal to 0. the range of the graph is all real numbers less than or equal to 0.