Arithmetic sequences are to linear functions as geometric sequences are to

Pelle's sister is three years older than pelle the father is 5 times as old as pelle the mother was 28 when the sister was born altogether they are 98 years old how old is pelle?

Module 10 coordinate proof using slope and distance answers is quadrilateral abcd a parallelogram? explain how you know.

What is the solution to the equation 9^(x+1) =27