I need help with these questions. Please provide a THOROUGH explanation of how you came up with the answers. The solution is as important as the answers. These questions are COMPLETE.

1.Three siblings Sofia, Achaiah and Riana started with different amounts of money. Sofia gave Achaiah and Riana as much money as each had. Then Achaiah gave Sofia and Riana as much money as each had. Then Riana gave Sofia and Achaiah as much money as each had. Then each of the three had $128. How much money did each have originally?

2.A square floor is tiled with congruent square tiles. The tiles on the two diagonals of the floor are blue. The rest of the tiles are green. If 101 blue tiles are used, find the total number of tiles on the floor.

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