Answer:
10x + 8y - 2
Step-by-step explanation:

Answer:
7 year old boys: 45-53 inches
7 year old girls: 45-52 inches
The probability of getting a two is 2/12.
Upper Left for certain.
Lower right. You can check it out using
a^2 + b^2 = c^2
14^2 + 48^2 = 50^2
196 + 2304 =? 2500
2500 = 2500 This checks out to being true. I don't think there are any others.