Line segment AB has endpoints A(3, -7) and B(-9,-5). Find the equation of the perpendicular bisector of AB.

Apackage of bacon holds 15 strips of bacon. the pancake house uses 17 packages of bacon in the morning and 21 packages in the afternoon. how many more strips were used in the afternoon than the morning?

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Which number line correctly shows 0.8 + 0.3?