A heron is perched in a tree 50 feet above sea level. Directly below the heron is a pelican that is flying 17 feet above sea level.
What is the difference in height between the heron and the pelican?

A: -67 feet
B: -33 feet
C: 33 feet
D: 67 feet

Anyone help please ASAP ? :(

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.