M=FD^2/(-Gn)
here is the solution
Anything times 1 = the same number so 696969x1=696969
For this case we must simplify the following expression:

We must add similar terms taking into account that:
- Equal signs are added and the same sign is placed.
- Different signs are subtracted and the major sign is placed.

Thus, the simplified expression is:

Answer:

175 red squares out of 1000 squares = 175/1000 = 0.175 of the design is red.