(3xy²+2x²y-3xy+4x²y²)+(3x²y²-3xy+2x y²y) simplified

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?

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4