Please help with the following:

  1. For what value(s) of "r" is 3r-6=7+3r
Aall real numbers

B)all negative numbers

C)0

Dno values of r

  1. What is the range of f(x)=[[x-1]]?

A)all reals

B)all integers

C)all real > or = 1

D)all integers > or = 1