1) Heather works as a waitress at her family's restaurant. She works a total of 16 hours for the morning shift and returns to work each evening for the dinner shift. In the last four
days, she worked 28 hours. If Heather works the same number of hours every evening,
how many hours did she work during each dinner shift?

Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?

Use sigma notation to represent the following series for 9 terms.