A billboard designer has decided that a sign should have 3-ft margins at the top and bottom and 2-ft margins on the left and right sides. Furthermore, the billboard should have a total area of 700 ft (including the margins). If denotes the width (in feet) of the billboard, find a function in the variable giving the area of the printed region of the billboard.

A rectangular box with no top is to have a square base and a volume of 10 ft. The material for the base costs 19 cents/ft and the material for the sides costs 12 cents/ft. If denotes the length of one side of the base (in feet), find a function in the variable giving the total cost of materials used in constructing the box in cents.

The weekly supply function for radial tires is given by where is the number of hundreds of tires and is in dollars. Find the average rate of change of the unit price as the quantity supplied goes from 200 tires to 250 tires.

The weekly supply function for video game consoles is given by where is the number of hundreds of consoles and is in dollars. Find the average rate of change of the unit price as the quantity supplied goes from 300 consoles to 350 consoles.

In a warm environment, the arterioles in the dermis will:

Which of the following statements regarding dental appliances is correct?

While preparing to apply the AED pads to an adult patient’s chest, you note that he has a transdermal medication patch where the sternum pad needs to be placed. You should:

The proper oxygen flow rate is determined by the:

If the AED advises “no shock,” you should:

In addition to CPR, many EMRs are also trained to perform: