M and n are integers such that –9 ≤ m ≤ 4 and –2 ≤ n ≤ 10, what is the least possible value of n – m? Please hurry

There are 12 boy and13 girls in a class. if the teacher randomly chooses a student’s name out of a hat what is the probability it will be a girl

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle