A country commits to decreasing spending for infrastructure in various ways at a rate of 30% per year. At the time of the announcement, the country is spending $12 billion per year. Which graph models the amount of infrastructure spending
for future years?

Step-by-step explanation:

As the options are not given in the question, lets find the amount spend in next 6 years and make a graph of it. I hope it helps

For year = 0:

Total spending = $12 billion

For year = 1:

Total spending is decreased by 30% as compared to year = 0

Find 30%:

Total spending = 12 - 3.6 = $8.4 billion

For year = 2:

Total spending is decreased by 30% as compared to year = 1

Find 30%:

Total spending = 8.4 - 2.5 = $5.9 billion

For year = 3:

Total spending is decreased by 30% as compared to year = 2

Find 30%:

Total spending = 5.9 - 1.77 = $4.13 billion

For year = 4:

Total spending is decreased by 30% as compared to year = 3

Find 30%:

Total spending = 4.13 - 1.24 = $2.89 billion

For year = 5:

Total spending is decreased by 30% as compared to year = 4

Find 30%:

Total spending = 2.89 - 0.87 = $2.02 billion

For year = 6:

Total spending is decreased by 30% as compared to year = 5

Find 30%:

Total spending = 2.02 - 0.60 = $1.42 billion

Graph:

x-axis = no. of year

y-axis = Total spending

Join the point to get the desired graph (see the picture)

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.

+1,000)=g7e=mc2-g=7 because if you know algebra you should know g=7 to get your answer