Since all of these numbers have the same variable they can all be added up to get a sum of 10a which is its simplified form.
 
        
                    
             
        
        
        
Answer:
your answer will be a. .12 minutes
Step-by-step explanation:
 this is your answer because you will add .12 to .08 to get your answer
 
        
             
        
        
        
Answer:
Step-by-step explanation:
16x^4y^-3z^4 / 36x^-2yz^0
16x^4y^-3z^4 = 16x^4z^4/y^3
36x^-2yz^0 = 36x^-2y(1) =36x^-2y = 36y/x^2
16x^4y^-3z^4 / 36x^-2yz^0
= (16x^4z^4/y^3) / (36y/x^2)
= 16x^4z^4/y^3 * x^2/36y  
= (4/9)x^6z^4/y^4
or another way 
fist multiply it out
f(x) = 4x^(3/5) - x^(8/5)
now differentiate knowing d/dx(x^n) = n x^(n-1)
to get
4*(3/5) x^(-2/5) - 8/5 x^(3/5)
simplify to get
12/5/x^(2/5) -   8/5 x^(3/5)
If this is what your looking for please give me brainiest, i have done this problem in the past so i know how to solve it :)