What is the sum to the equation 6 = 1/2z

Nnnnneeedd 1.find the residual if you know the actual number is 5.2 and the predicted value is 4.8

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.