101, 299, -181, 103, x, -81, 170, 160

calculate the missing value x from the given average (arithmetic mean) of 84 and the known data values in the table.
a) -101
b) -100
c) 0
d) 100
e) 101

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?