How is sample related to population

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Can some one explain this i got sent this. is this a threat i’m scared

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.