Is 5x-5 Always, Sometimes or Never going to equal 5(x+1)?

Daniel bought a computer game for $25 and later sold it to thomas for a 40% profit. how much did daniel sell the computer game for?

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?

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11