Answer:
90
Step-by-step explanation:
look at the picture i have sent
890.625
2.5x2.5x2.5 (Volume of Cube)=15.625
Density is 57
57=x/15.625
890.625=x
7×17/49
90/7 × 4/7
90×4 / 7×7
360/49
7 17/49
i think its B