Compute the simple interest earned on a deposit of $5000 at 8.5% for 120 days

Hello can you me find all the products

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?

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)