In a new highly automated factory, labor costs are expected to decrease at an annual rate of 5 percent; material costs will increase at an annual rate of 4 percent; overhead costs will increase at 8 percent. The labor, material, and overhead costs at the end of year 1 are $2 million,$3 million, and $1.6 million, respectively. The time value of money rate is 11 percent, and the time horizon is 7 years.

a. Determine the dollar value for each cost category (labor, material, overhead) for each year and determine the total cost for each year. (Hint: Use a spreadsheet!)

b. Determine the present worth of each cost category and the total cost.

c. Determine the annual worth over 7 years that is equivalent to the present worth of the total cost

How might a dramatic decrease in vegetation lead to a decrease in a prey species? (Hint: Think of how the vegetation, prey, and predator could be connected in a food chain.)

Decrease 210 by a ratio of 3:7.

The amount of solar heating can increase from:

A. a decrease in sunspot activity and energy output from the Sun

B. a decrease in snow and ice cover on Earth's surface

C. a decrease in the amount of greenhouse gases

D. a huge volcanic eruption that adds ash and dust to the atmosphere

Decrease 40 by a ratio of 4:5.

In the short run, the expansionary fiscal policy usually will

A. decrease the price level and increase real GDP.
B. increase real GDP and decrease the price level.
C. increase both real GDP and the price level.
D. decrease both real GDP and the price level.

By decreasing the dimension by 1 unit, the area of a rectangle decreased from 40 square feet (on the left) to 28 square feet (on the right). Find the percent of the decrease in area.

Will the temperature of the descending air increase or decrease?

Answer true or false to each statement. Explain your answers. If a line has a positive slope, y-values on the line decrease as the x-values decrease.

Water is boiled in a pan covered with a poorly fitting lid at a specified location. Heat is supplied to the pan by a 2-kW resistance heater. The amount of water in the pan is observed to decrease by 1.19 kg in 30 minutes. If it is estimated that 75 percent of electricity consumed by the heater is transferred to the water as heat, determine the local atmospheric pressure in that location.

Which of the following is unlikely to cause deposition of sediment along a stream?

A. a decrease in gradient

B. a decrease in water velocity

C. a drop in sea level

D. none of these

the net working capital of a firm will decrease if there is

the net working capital of a firm will decrease if there is:

In acetic acid vapor, some molecules exist as monomers and some as dimers (see Figure 12-9). If the density of the vapor at $350 \mathrm{~K}$ and $1 \mathrm{~atm}$ is $3.23 \mathrm{~g} / \mathrm{L}$, what percentage of the molecules must exist as dimers? Would you expect this percent to increase or decrease with temperature?