(3x)/(7y)-:(9z)/(19y^(2))

Which of the following is the correct ratio for converting kilograms to grams

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?

Simplify the algebraic expression 8y-2(y+4)