joanne is charged a base rate of $40.00 each month for her cell service. she upgrades her phone and chooses to make 18 monthly payments of $25 to pay for her new samsung. she must also pay 25 cents for each text that she sends. which function represents joanne's phone charges each month for the next 18 months?
a) y = .25x + 65
b) y = .25x + 40
c) y = .25x + 72
d) y = 25x + 40

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? )