now then I am giving away free(ish) points please make sure to answer the question attached or you're answer might get taken down

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?

What is the cube root of -1,000p^12q3? -10p^4 -10p^4q 10p^4 10p^4q

The mass of a marine organism, in pounds, p years after it is born is given by the polynomial function r(p) = -4p2 + 300p. find the mass when p = 20 years.