Simplify: 5/4(4x+3) - 3/4(x-2)

What is sin 7x/4 ? i need on this urgent trig

What properties allow transformation to be used as a problem solving tool

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?