Fourty and eight tenths as a decimals is 40.8. More than one pounds behind decimal is too much and a different number other than 8 is wrong. The answer is B: 40.8.
The unit form for that is
5,500
Circumference = πD
30π = πD
D = 30 inches
Answer: 30 inches
Yy^2 I'm pretty sure is the answer!