In the past you paid $800 per month to rent your apartment. you now pay $900 per month for your rent. what is the percent increase in your rent?

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1