How do i round 17.875 to the nearest tenth

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

(60 points) explain this in detail

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.