In a printing business, the primary operating costs are incu…

In a printing business, the primary operating costs are incurred by printers. If a printer prints 36,000 copies during a year its average operating cost is $5,100. Alternatively, if a printer prints 8,000 copies during the year, its average operating cost is $2,300.   Which of the following equations can be used to predict the total operating cost if the expectation is to print 25,000 copies next year?

Damon’s teachers frequently complain that he disrupts his ki…

Damon’s teachers frequently complain that he disrupts his kindergarten class by fidgeting and moving about all the time. He does not pay any attention to what is being taught in class and behaves impulsively. Considering the presence of the tell-tale characteristics of inattention, hyperactivity, and impulsivity, Damon’s pediatrician diagnosed him with: