23
because
the pattern is
(5 10) ..1.. (15 20) ..2.. (25 30) ..3..
..1... = 3
..2.. = 13
so ..3.. = 23
Answer:
d
Step-by-step explanation:
What do you need help with?
Answer:The answer will be 20
Step-by-step explanation: If you are given the circumference of something all you have to do is divide it my pi (3.14) to get the answer. If you know the diameter and is looking for the circumference you multiply the diameter by pi. Hope this helps.
