The table of values represents the function g(x) and the graph shows the function f(x).

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)

At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.