The date of the first sighting of robins has been occurring earlier each spring over the past 25 years at a certain laboratory scientists from this laboratory have developed two linear equations, shown below tha estimate the date of the first sighting of robins, where x is the year and y is the estimated number of days into the year when a robin can be expected. complete parts a and b (hint 2000 was a leap year) y 797 0.355x y 1673-0.799x a. compare the date of first sighting in 2000 for each of these equations o march 28, march 16 o march 8, march 30 o march 13, march 22 o march 27, march 15 b. solve this system of equations to find the year in which the two estimates agree (round to the nearest year as needed) click to select your answers) 42 pm 4x 7/11/2018 hp prt

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? )