Which of the following expressions, if any, are equal for all real numbers "m"? I. square root of m^2 II. |-m| III. - |m|  A. I and II
B. I and III
C. I,II and III
D. II and III

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.