Which of the following represents a 5-person group selected for the
treatment group using the first number in the line from a table of random
numbers above?

What is the domain of the step function f(x)=[2x]-1?

Taylor graphs the system below on her graphing calculator and decides that f(x)=g(x) at x=0, x=1, and x=3. provide taylor some feedback that explains which part of her answer is incorrect and why it is incorrect. f(x)=2x+1 g(x)=2x^2+1

Simplify each expression for 18, 20, and 21