The city council wants to find out if city residents would be willing to pay higher taxes for improvements to the city's parks.

which sampling procedure is most likely to give an unbiased report of the residents' opinions?

a.
the council randomly surveys people from a list of city residents.

b.
the council surveys a random selection of visitors to the city's parks.

c.
the council does a random survey of parents of children playing in the city's parks.

d.
the council randomly surveys employees of the city's parks department.

Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.