Hello,
The formula for finding the circumference of a circle is

where r is the radius. SO we can plug 4 in for r in this formula because 4 is the radius:

. We are told to use 3.14 for

so we get

. Therefore, the circumference is 25.12 meters.
Answer:
$2,700
Step-by-step explanation:
Find the total donation amount by dividing 135 by 0.05:
135/0.05
= 2700
So, the class collected $2,700 in all
Answer:
first one
Step-by-step explanation: