I need help asap!! This is an i-ready lesson.

Issof claims that the scale factor is 1/2. which statement about his claim is correct

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?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.