What is midpoint of the segment whose endpoints are (-2,-3) and (6,1)?

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Which of these sequences is a geometric sequence a 1,2,4, 7, 11, 16, 22. b. 2.4.8.14.22.38 c.3.6.9. 15.18,21 d. 3,9,27,81,243,729,

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?