A lionfish has 13 spines on its back, 2 near the middle of its underside, and 3 on its underside near its tail. Write two different number sentences to find how many spines a lionfish has in all. What property did you use?

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?

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

41/17 as a decimal rounded to the nearest hundredth