In what they call "Year Zero," a group of 26 people started a settlement. Every year the population changes as babies are born, people move in, and people move out.
Generally, the population increases by an average of 2.6 people a year.
At the same time, a nearby established community discovered that their population
could be described by the following function, where f(x) is the population, in
people, and x is the time, in years, from "year zero."
f(x) = -5.3x + 256
Part A
Using your knowlekage of functions, explain specifically why both communities' ways
of expressing their populations represent functions. Provide evidence to support
your answer
Part B
Analyze the functions and compare the populations for the two communities over
time by describing in detail under what conditions one community's population is
greater than the other's population. Provide evidence to support your answer.
Your answer

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Ireally need subtract and simplify.(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)show your work, ! i will mark you brainliest but you have to show your work.

Questions 9-10. use the table of educational expenditures to answer the questions. k-12 education expenditures population indiana $9.97 billion 6.6 million illinois $28.54 billion 12.9 million kentucky $6.58 billion 4.4 million michigan $16.85 billion 9.9 million ohio $20.23 billion 11.6million 9. if the amount of k-12 education expenses in indiana were proportional to those in ohio, what would have been the expected value of k-12 expenditures in indiana? (give the answer in billions rounded to the nearest hundredth) 10. use the value of k-12 education expenditures in michigan as a proportion of the population in michigan to estimate what the value of k-12 education expenses would be in illinois. a) find the expected value of k-12 expenditures in illinois if illinois were proportional to michigan. (give the answer in billions rounded to the nearest hundredth) b) how does this compare to the actual value for k-12 expenditures in illinois? (lower, higher, same? )