Answer:

Step-by-step explanation:
1. Density

2. Specific gravity
Specific gravity (sp gr) is the ratio of the density of the density of a gas to the density of dry air at standard temperature and pressure.
At IUPAC standard temperature and pressure (0 °C and 100 kPa), dry air has a density of 0.080 lb/ft³.

Answer:
A
Step-by-step explanation:
distributive property
The answer to the question is 12,400
Answer:
0
Step-by-step explanation:
The determinant of this matrix is zero (0).
Use the Pythagorean Theorem to check out these possibilities (which you really do need to share here).
Note that 13^2 = 12^2 + 5^2, so 12 and 5 are a possible set of side lengths here.