Round each z-score to the nearest hundredth. A data set has a mean of x = 3948 and a standard deviation of 115. Find the z-score for each of the following.
(a) X = 3840
x
sic
85
(b)
X = 4200
X = 4300
(d)
X = 4030
Does anybody know this!

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?