What is the area of the triangle?

8
8
10
10
12.8
12.8

Asoccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.1 in

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

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?