Determine the period

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

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.

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c