(10х — 4х2) - (7х + 1) = 3х – 6х2 -10^2 -2^2 - x^2 2^2

Afitness center has 2 membership plans one has a low dollar sign up fee of 15 dollars and costs 38 dollars per month to join. a second plan has a higher sign up fee of 78 dollars but a lower monthly fee of 31 dollars for what number of days of the month is the coat the same