Nathan is doing a survey about dvds
he writes a questionnaire.
nathan decides to hand out his questionnaire to the women who are inside the dvd store
give possible reasons why his sample is biased

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Write the equation in logarithmic form e^x=403.429