Rewrite in simplest terms: 7(-9a + 2a + 8) – 3a

Which formula finds the probability that a point on the grid below will be in the blue area? p(blue) = total number of squares number of blue squares number of blue squares p(blue) = total number of squares number of blue squares p(blue) = number of white squares

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b