I think your question isn’t phrased well
        
             
        
        
        
Answer:
identity property of addition-
a+0=a
identity property of multiplication-
a*1=a
Step-by-step explanation:
i cant give u an exact answer as u didnt give Micheals answers so i just gave some examples about what addition and multiplication identity property should look like. Identity property's concept is to keep the same identity. Basically, "a" shouldnt change. In addition, to keep a the same all u hv to do is add 0 as anything plus 0 is the same. for multiplication, just multiply by 1. Hope this helps!! 
 
        
             
        
        
        
Answer:
12862.83cm³
Step-by-step explanation:
Volume of the Box: [L×W×H] or [30x30x30] or [27000cm³]
Volume of the Sphere: [ ] (
] ( =pi=3.14) (r=radius=15) or [
=pi=3.14) (r=radius=15) or [ ×3.14×3375] or [14137.17cm³]
×3.14×3375] or [14137.17cm³]
Volume of the empty space: 27000cm³-14137.17cm³=12862.83cm³
Btw there are online tools to help you find the volume of a sphere (just use it after you understand the equation)
Hope I helped!
 
        
             
        
        
        
Following rules of logs, we can do the following:
log x^4 - log y^(1/2) + log z^3
Combine the first and 3rd factors to get    log [x^4*z^3]
Seeing that the neg. sign signifies division, write this new term - log y^(1/2) as a quotient:
        [x^4*z^3]
log ----------------
           y^(1/2)
Next time, please include the instructions when you present your problem.
Thx.
        
             
        
        
        
Answer:
20%
Step-by-step explanation:
20 * 20% = 4
or you can change it to a decimal
20 * .2 = 4
hope this helped! :)