What is a vertical line that has a rise over run that does not exist

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

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.

The function show two sisters' savings account and the rate at which they plan to deposit money