Answer: 9
Step-by-step explanation: if the diameter of the pizza is 18 inches then the radius would be half of that, 9.
Answer:

Step-by-step explanation:
cos O = adjacent / hypotenuse
cos O = 12/13
I hope I helped you^_^
Answer:
see below
Step-by-step explanation:
The first step is to read the problem
Then you need to make a plan
Implement the plan
Then evaluate the answer to see if it makes sense
You will need 2.75 cups hope this helps you