3- all you have to do is 4.7 + 4.7
4 same thing just add that number to itself
For #5 take 25.6 and divide it by 2 and that’s your radius.
Explanation- the radius is half of the diameter
Answer:

Step-by-step explanation:



Answer:
903
Step-by-step explanation:
5% of 860 is 43
add that percent to the existing amount