Choose the measurement that is most precise.
a.
12 mm
c.
1.2 m
b.
12 cm
d.
23 m

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

14+2 (56-1) this is an arithmetic sequence

If the equation of a perpendicular bisector of a triangle is y = 2x + 7, what is the slope of the side that it is bisecting? explain how you know.