Help please is for now

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

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

The sum of two numbers is 86, and their difference is 20. find the two numbers