M is between X and Y. If XM = 3x - 5, YM = x + 7, and XY = 26, find the each of the following.
a. the value of x
b. XM =

Classify the polygon by its number of sides. state whether the polygon appears to be regular or not regular. a.heptagon, regular b. heptagon, not regular c. octagon, regular d. octagon, not regular

Ireally need subtract and simplify.(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)show your work, ! i will mark you brainliest but you have to show your work.

Someone which statements are true? check all that apply.