Answer:
46 is d I'm not sure for 47 but I think it's c not sure tho
It is called Ecological Succesion hope that helped:)

SOLVE FOR X IN THE DIAGRAM
SUM OF ALL ANGLES ON STRAIGHT LINE IS 180°

ANGLES :- 5x , (x+54°),90


If the selling price is marked up by 25 percent, the new price will be $10.
8 * 1.25 = 10
If the selling price is marked up by 70 percent, the new price will be $13.60.
8 * 1.70 = 13.6
If the selling price is marked up by 75 percent, the new price will be $14.
8 * 1.75 = 14