0. the temperature at a ski slope decreases 2.5°f for every thousand feet of elevation above
the base. the temperature at the base is 28°f and the temperature at the summit is 24 f.
how many thousand feet above the base is the summit?
define variable:
equation:

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.