Having trouble with question 4 can someone

Change negative exponents to positive. then solve. round to four decimal places

What is the slope of the line passing through the points (-5, 7) and (-3,5)?

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.