Which of the following prevents soil degradation? 1 Crop rotation maintains soil fertility because different crops use up different nutrients.

2 Removing an entire harvest and leaving the soil fallow (unused) for a period of time, thereby preventing wind erosion

3 Improved irrigation methods prevents desertification and salinization.

4 Planting trees and bushes reduces wind erosion.

Perform a goal seek analysis to find a packing weight that will bring the shipping weight of the retro fit clothing set down to 39.75 lbs. use cell i9 as the cell to set, 39.75 as the target value, and cell f5 as the changing cell. keep the values generated by the goal seek analysis as the value for cells f5, i9, and i10.

For example, the upper right cell shows that if expresso advertises and beantown doesn't advertise, expresso will make a profit of $15 million, and beantown will make a profit of $2 million. assume this is a simultaneous game and that expresso and beantown are both profit-maximizing firms. if expresso decides to advertise, it will earn a profit of $ million if beantown advertises and a profit of $ million if beantown does not advertise. if expresso decides not to advertise, it will earn a profit of $ million if beantown advertises and a profit of $ million if beantown does not advertise. if beantown advertises, expresso makes a higher profit if it chooses . if beantown doesn't advertise, expresso makes a higher profit if it chooses . suppose that both firms start off not advertising. if the firms act independently, what strategies will they end up choosing? expresso will choose to advertise and beantown will choose not to advertise. expresso will choose not to advertise and beantown will choose to advertise. both firms will choose to advertise. both firms will choose not to advertise.

Suppose for a consumer the marginal utility (mu) of bread is 20 utils and the mu of milk is 10 utils; the price of bread is $3 and the price of milk is $1. given this, a. more utility per dollar is gained from consuming bread than milk. b. more utility per dollar is gained from consuming milk than bread. c. the same amount of utility per dollar is gained from consuming milk as bread. d. the consumer is in consumer equilibrium.