What is the percent of change from 85 to 64

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

X-intercept=-5 y-intercept=2 the equation of the line is

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.