The cost C, in dollars, prepaid cell phone call is proportional to the time t, in minutes, that the call lasts. The equation that represents this relationship for carrier A is C=0.15t. The table below shows the relationship for carrier B. Which carrier has a lower unit rate?

Triangle xyz has vertices x(1,3), y(0,0)

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?

If rt is greater than ba, which statement must be true ?