What question 4 or 5?oh....
Answer:
y=71
x=109
Step-by-step explanation:
You must mean the depth of the submarine.
to make sum = zero the depth of the sub must be -1600 ft..
P(x, y) Q(x,y)
P(-2, -1) start at 0. Go to the left two squares, then go down 1 square. mark a point there
Q(2, 4) start at 0. Go to the right two squares, go up 4 squares. mark a point there.
connect two points
make a right triangle
Then use the pythereom


Her speed was 62.5 miles per hour.