How many times longer is the diameter of a grain of sand than the diameter of the average cell in the human body? show your work.

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

Aresearch group wants to find the opinions’ of city residents on the construction of a new downtown parking garage. what is the population of the survey downtown shoppers downtown visitors downtown workers city residents

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1