How many tickets with different points of origin and destination can be sold on a bus line that travels a loop with 20 stops?

different tickets can be sold.

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Will possibly give brainliest and a high rating. choose the linear inequality that describes the graph. the gray area represents the shaded region. 4x + y > 4 4x – y ≥ 4 4x + y < 4 4x + y ≥ 4

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay