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

diameter = 25 ft

a.
39.25 ft
b.
78.5 ft
c.
490.63 ft
d.
1,962.5 ft

Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?