Answer: J
Explanation: J is equivalent to $640.65 
hope that helps if you have any questions let me know and if you could mark this as brainliest i would really appreciate it!!
        
             
        
        
        
350 + 0.029(5600) = 350 + 162.40 = 512.40 <==
        
             
        
        
        
Answer:
1 / ( 243s^40 )
Step-by-step explanation:
For this problem, we need to know that a negative exponent simply can be rewritten in the opposing part of the fraction, for this case, the denominator.  So we can simplify as shown:
(3s^8)^-5
= 1 / (3s^8)^5
= 1 / 3^5 * s^8^5
= 1 / 243 * s^40
= 1 / ( 243s^40 )
Cheers.
 
        
             
        
        
        
He used 7 pints all together because there at 2 cups in each pint and 4 pints in a half a gallon.