Answer:
C = 39 pi meters
Step-by-step explanation:
The circumference of a circle is given by
C = 2 * pi * r
C = 2 * pi * 19.5
C = 39 pi meters
Answer:
y=4
Step-by-step explanation:
Answer: 6x + 2y
Step-by-step explanation: 4y-2y are both alike terms, so you subtract the two, and then add 6x to it