Answer:
18
Step-by-step explanation:
7b-2+3b+2=180
10b=180
b=18
reduce 10 qauts of 50%
or approximately units
The formula for finding the circumference of a circle is , where = circumference and = radius. In this case, , so after plugging that into , we get:
Since is approximately , , which rounds to . Therefore, the circumference of the circle is , or approximately units. Hope this helps!
reflection
the second picture is the same distance away form the y axis as the first picture