If the x-coordinate of R is 6 units away from D's x-coordinate, then so will J's x-coordinate. If the y-coordinate of R is 8 units away from D's y-coordinate, then so will J's y-coordinate.
For answer #3... just replace (T) with 76.50 in the equation T=9h Then since this is a division problem you would do 76.50/9=9h/9 This gives you your answer which is h=8.5. Hope this helps!!:)
