Can someone please help me out with this?

On a architect's drawing of a house, 1 inche representa 1.5

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

What is the slope of the line that passes through the points (–9, 2) and (0, 4)? the slope of the line is