El radio de una circunferencia mide 12 cm. ¿Es posible que una cuerda mida 15 cm? ¿Cuál es la medida máxima que puede tener una cuerda en esta circunferencia? Por favor ayúdenme

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.