What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(3x)?

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

Rationalize the denominator- 12x/√x-10

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid