Regular quadrilateral pyramid with base edge b=55 mm and lateral edge l=7 cm. Find the sum of all edges.

How do i do this activity, is appreciated

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =