Tell me what all of these are.Very confusing

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

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?

Iwill give you ! what is the measure of ∠v ?