100 Points! Don't waste my time for points or you will be reported. Looking for math experts. The coordinates of point P on a coordinate grid are (−5, −6). Point P is reflected across the y-axis to obtain point Q and across the x-axis to obtain point R. What are the coordinates of points Q and R?

Q(5, 6) and R(−5, −6)
Q(−5, −6) and R(5, 6)
Q(−5, 6) and R(5, −6)
Q(5, −6) and R(−5, 6)

The map of a biking trail is drawn on a coordinate grid. The trail starts at P(−2, 1) and goes to Q(6, 1). It goes from Q to R(6, −3) and then to S(9, −3).
What is the total length (in units) of the biking trail?
11
15
18
19

On the map of an amusement park on a coordinate grid, the skating rink is at (0.5, −1).
Which of these shows how to plot the point to mark the skating rink?

From the origin, move 1 unit to the left along the x-axis and 0.5 unit vertically down, and place the point.
From the origin, move 0.5 unit to the left along the x-axis and 1 unit vertically down, and place the point.
From the origin, move 1 unit to the right along the x-axis and 0.5 unit vertically down, and place the point.
From the origin, move 0.5 unit to the right along the x-axis and 1 unit vertically down, and place the point.