Simplify √20 to 2√5
2 * 2√5 - 3√7 - 2√5 + 4√63
Simplify √63 to 3√7
2 * 2√5 - 3√7 - 2√5 + 4 * 3√7
Simplify 2 * 2√5 to 4√5
4√5 - 3√7 - 2√5 + 4 * 3√7
Simplify 4 * 3 √7 to 12√7
Collect like terms
(4√5 - 2√5) + (-3√7 + 12√7)
Simplify 
2√5 + 9√7
Answer: B
 
        
             
        
        
        
Answer:
The second one
Step-by-step explanation:
Because there are more people
 
        
             
        
        
        
Answer: Thus both of them got it correct 
Step-by-step explanation:
Step 1
Andy finds the sale price of a baseball glove that normally costs $49 by evaluating the question 49 - 0.3(49). 
the Price will be 49-14.7=34:3
Step 2
Juan finds the sale price by multiplying 0.7(49).
0.7x 49 =34.3
 
        
             
        
        
        
f(n) = -6.5n + 14.5
&
f(1) = 8, f(n+1) = f(n) - 6.5
        
                    
             
        
        
        
Answer: $308
Step-by-step explanation:
Based on the information given in the question, the account balance of Ms. Smith at the end of June will be:
= $8118 + $710 - $1211 + $809
= $8426
Therefore, the difference in her account balance than it was on April 1st will be:
= $8426 - $8118
= $308