Okay so Nancy wrote hers in expanded form is a method of representing a number through an addition statement by totaling the values of its digits.
Answer:
B. Herbicides
Explanation:
Nonnative species are species that are found outside their natural habitat. They are also called foreign species. They are introduced through the activities of man either deliberately or in-deliberately . They can be controlled by chemical, biological and mechanical means.
Mowing, net barriers and inspections are mechanical controls.
Biological control is the deliberate introduction of natural enemies of these nonnative/foreign species.
The use of herbicides is a chemical control of plants that grow where they are not wanted.
MPC stands for "marginal propensity to consume," which refers to a rise in consumer spending for every unit of income level achieved.
Marginal propensity to save (MPS) is the percentage of a person's income that they put away for savings for every unit that their income level rises.
Spending multiplier = Increase in income level for each unit increase in autonomous spending = 1/(1-MPC) = 1/MPS Spending multiplier = Increase in income level for each unit increase in autonomous expenditure. This is further explained below.
<h3>What is a multiplier?</h3>
Generally, the amount by which the return on investment is greater than the investment itself is referred to as the investment's return on investment (ROI).
In conclusion, Marginal propensity to save (MPS) is the percentage of a person's income that they put away for savings for every unit that their income level rises.
Read more about multiplier
brainly.com/question/23536361
#SPJ1