Where is m and p i don't know because it's confusing

M is 1.75
               P is 2.5

To find M and P, you have to find the midpoints between the two numbers they lie between. 

Find the midpoints by adding those two numbers up and dividing by 2.
Ex. Midpoint of 1 and 2
      1 + 2 = 3
      3/2 = 1.5
      The midpoint of 1 and 2 is 1.5.

Ex. Midpoint of 5 and 9
      5 + 9 = 14
      14/2 = 7
      The midpoint of 5 and 9 is 7.

You can also apply this same concept to decimals.
Ex. Midpoint of 7.9 and 5.6
      7.9 + 5.6 = 13.5
      13.5/2 = 6.75
      The midpoint of 7.9 and 5.6 is 6.75.

Use this knowledge to solve questions similar to this.