Can you help me please​

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

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

Which strategy is used by public health to reduce the incidence of food poisoning?