Divide 5 1/2, or 11/2 by 3/4. You can do that by multiplying 11/2 and 4/3 to get 44/6. Simplify and you get 22/3, which is about 7.33 or 7 1/3. If he can only paint whole dog houses, the answer is 7.
the radius is half of the diameter, so d = 2r , or double the radius :)
The answer is 25 just use a calculator for that type of math
