Constant of Variation Which is the correct graph of y = 1/x² ?

a.
b.
c.
d.

Please select the best answer from the choices provided

Arrange these numbers from least to greatest 3/5 5/7 2/9

We just started the introduction into circles and i have no idea how to do this.

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500