Find the midpoint of the segment joining X(6,5) and Y(9,2). I'm lost geomerty

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?

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way