If a single 10 sided die is tossed once, find the probability of rolling 2 or 9.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

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?

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?