Kate is going to buy either 1, 2, 3, or 4 pens. The cost of buying n pens is given by the function F(n)=1.25n, where F(n)=cost in dollars.
Which best describes the range of f(n) in this situation?
{1,2,3,4}
(1.25,2.50,3.75,5.00}
1 1.25

Select true or false to tell whether the following conditional p q is true or false. use the truth table if needed. if a week has seven days, then a year has twenty months.

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

Which function has the domain x> -11