Its about the equation but I don’t know how to solve it

Rewrite the hyperbolic equation 4y^2 -9x^2 +54x-8y-113=0

How do the graphs of y = 1/x and y=5/x+6 compare?

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