HELP PLEASE?!

a median of a triangle is a line or segment that passes through a vertex and the side opposite of that vertex

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

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