Ana Mayer is getting ready to open a small restaurant. She is on a tight budget and must choose between the following long-distance phone plans: Plan A: Pay 9 cents per minute of long-distance calling. Plan B: Pay a fixed monthly fee of $14 for up to 300 long-distance minutes, and 4 cents per minute thereafter (if she uses fewer than 300 minutes in any month, she still pays $14 for the month). Plan C: Pay a fixed monthly fee of $22 for up to 480 long-distance minutes and 2 cents per minute thereafter (if she uses fewer than 480 minutes, she still pays $22 for the month). Required Which plan should Mayer choose if she expects to make 100 minutes of long-distance calls? 300 minutes? 500 minutes? For each different level of monthly long-distance calling, select the plan that Mayer should choose