Find the circumference of the circle with the given radius or diameter. (use 3.14 for π.)

diameter = 24 cm
a.
37.68 cm
b.
452.16 cm
c.
1,808.64 cm
d.
75.36 cm

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .