Triangle ABC is transformed to form triangle A'B'C'. Which transformation of △ABC results in △A'B'C'?

Reflection across the x-axis

Rotation 180° about the origin

Translation 3 units down and 2 to the right

Rotation counterclockwise 270° about the origin

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?

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The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16