Add the two expressions
-4.2x+3 and 2.5x-6

please help me with this

Which of the following is the true for f(x) = 5cos

How far could you drive on 50 gallons of gas

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