Aseamstress has 1/4 of a foot of thread. then she uses 1/5 of a foot of thread to sew a hole. how much of the thread is left?

a) 9/20 of a foot
b) 3/20 of a foot
c) 1/20 of a foot
d) 1/16 of a foot

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.