Answer:
i
Step-by-step explanation:
im
Three added to the product of four and twelve
or
The product of four and twelve added by three
That depends. What are you trying to find? The formula for the perimeter? The formula for the area?
Answer:
18
Step-by-step explanation:
The diameter is equal to twice the length of the radius
So if the radius is 9 then the diameter is 9 * 2 = 18