Which set of ordered pairs does not represent a function?
a) (0, 1), (2, 2), (4, 8), (-2, 7), (5, 8)

b) (0, 1), (2, 2), (4, 8), (2, 7), (5, 8), (7, 9)

c) (-3, 6), (2, 7), (0, 5), (1, 5), (4, 9), (5, 4)

d) (-4, 2), (-3, 2), (-2, 2), (-1, 2), (0, 2), (1, 2)

Use the quadratic formula to solve 5x=6x^2-3,what are the values of x?

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

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.