Answer:
78°
Step-by-step explanation:
Angles on a straight line = 180°
AD is the straight line
Angle BFA = 48
Angle CFD = 54
54 + 48 = 102
180 - 102 = 78
Therefore, Angle BFC = 78°
73.94 X .33 = 24.40 thats how much the markup (or profit is)
73.94 + 24.40 = 98.34 thats how much they sold it for.
Density=mass/volume, 9.86=mass/150, so mass=150×9.86=1479g=1.479kg.