Use difference to find a pattern in the sequence. 5, 13, 29, 97, 155, 233

Ahiking trail is 6 miles long. it has 4 exercise stations, spaced evenly along the trail. what is the distance between each exercise station?

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?