160 divided by 7 rounded to the nearest hundredth

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

Can someone me out here and the tell me the greatest common factor

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?