Classify each variable as continuous , ordinal, or nominal. Age, Brand of cheese, University program, Cell Phone Company, Average overall Mark, Setting on a hair dryer ( low, medium, high), Price of Milk, Length of hair ( Short or Long)

Abox of chocolates costs $7. which equation relates the number of boxes sold (x) and total cost of the boxes sold (y)?

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

What is the difference between a linear interval and a nonlinear interval?