Answer:
Step-by-step explanation:
The equation for solving for density is:
Density = mass / volume
Then plug in the values:
Density = 6 g / 12 mL
Divide and don't forget the units!
Density = 0.5 g/mL
You need to form an algebraic equation. 4.5+h=7.3 therefore h= 7.3 - 4.5 when you take 4.5 to the other side it becomes negative therefore the answer is 2.8.
Answer:
Step-by-step explanation:

珠ɪᴢᴜᴍɪᴿᴬᴳᴱ
Answer:
2^20
Step-by-step explanation:
2^4x5
= 2^20
Answer:
7
Step-by-step explanation:
First, we solve for j in the first equation:
4j+3=-5
4j=-8
j=-2
Now we plug j into j+9:
-2+9=7
So j+9 is 7