At home, 2 out of 5 people have access to board and technology. what percent is this?

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 are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.