2$ is what percent of 20$

Solutions for 2x+7 less than or equal to 3x-5

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?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers