An old treasure map has following instructions: stand next to the black Rock and face west.
walk 20 yards and then then turn 90 degrees.
walk another 10 yards and then turn 45 degrees anticlockwise.
walk another 15 yards , reverse your direction and walk 5yards back.
turn 135 degrees clockwise and walk another 10 yards.​

Which of the following expressions is equal to 2x^2+8

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?