Which is the BEST system to measure the likelihood of an event occurring? Α.
between 0 and 1
B
between 0 and 1
С
between 0 and 10
D
between 0 and 100

Please help !!

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1