Answer:

Step-by-step explanation:
Diameter of a model of earth (D) = 25.6 cm
Radius of a model of earth (r) = 
Earth has the shape of a sphere.
Total surface area of a sphere = 
Put 
So,
Total surface area of the model 
Answer:
Step-by-step explanation:
2x < 40 - 10
2x < 30
x < 30/2
x < 15
Answer:
-2/-3 = 2/3 this is true
Step-by-step explanatio
3/2 = 1,5 but -2/-3 = 2/3 about 0.66666...
I am pretty sure it's 44 degrees.