X = 8.5 because 8.5 x 2 = 17 and 17 + 1 = 18
Okay, so to make 1.95 a 2 we need to add .05. Now we can just figure out the difference between 2 and 13 and add the .05 later.
13-2=11, so we know the difference between 1.95 and 13 is 11.05.
The answer 81pi is if it asked you to keep the answer in terms of pi.
The second answer is if they wanted pi calculated into the answer.
Answer:
2 2/5 inches
Step-by-step explanation:
3/5 x 4
3/5 x 4/1
3/5 x 4/1 = 12/5
12/5 = 2 2/5
Hope this helps you with your question