Answer:
3(x-1)x(3x+1)
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given that,
Mass of material, m = 6900 grams
Volume of the material, V = 4.5 quarts
We need to find the density in pounds per cubic foot
We know that,
1 pound = 453.59 grams
⇒ 6900 grams = 15.21 pounds
Also, 1 cubic foot = 29.92 quarts
4.5 quart = 0.15 feet³
Density = mass/volume
Or

Hence, the density of the material is 
It’ll be C all the numbers in between -7 and 7
Answer:
IDK please add a picture/equation so I can understand ty
Step-by-step explanation: