Suppose the linear regression line y=-0.3x + 11.2 predicts the time, in
minutes, it takes you to finish an obstacle course after training for x days.
About how much time would it take you to finish the course after training for
7 days?
O
A. 78.1 minutes
O
B. 2.1 minutes
O
C. 13.3 minutes
O
D. 9.1 minutes

In the geometric progression –3, 12, −48… what term is 3,072?

What does the sign of the slope tell you about a line?

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? )