POW+-+Oct+1-Oct+5

[[image:field trip.jpg width="241" height="178" align="right"]]
==**Mrs. Kay is planning a field trip. She wanted to plan how to contact her students by phone in case the field trip they were going on the next day needed to be canceled. She decided to call one student who would then call 2 other students. Each of these students would then call 2 other students. This would continue until all students had been called. Mrs. Kay has 31 students. How many students will need to make phone calls if Mrs. Kay calls the first student? Find a rule for determining how many phone calls will be made for any number of students.**==