Answer: The volume of given substance is
.
Step-by-step explanation:
Given: Density = 10.7 
Mass = 23.54 g
Density of a substance is the mass of substance divided by its volume.
Mathematically, 
Substitute the values into above formula to calculate volume as follows.

Thus, we can conclude that the volume of given substance is
.
I think the answer is 9.375 if it needs to be in decimal form. If it needs to be in fraction form it would be improper, 9 3/8 would be the fraction. Hope it helps!
Answer:
A
Step-by-step explanation:
The number 6 could replace the gap :)
The unknown angle is 90 degrees