Which example would be likely to give a valid conclusion? five students are surveyed about their favorite sport. people are asked, "is our great principal doing a good job? " thirty students are randomly sampled about their hair color. four boys are asked about their favorite sport.

Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.