Answer:
first one with -1...21
Step-by-step explanation:
only one that follows quadratic formula format
 
        
             
        
        
        
Answer:
4
Step-by-step explanation:
First n(AUB)=n(E) - n((AUB)')
So n(AUB) = 40 - 6 = 34
Now all u hv to do is use the formulae,
n(AUB) = n(A) + n(B) - n(ANB)
So when u substitute above values,
34=22 + n(B) - 8
So,
n(B) = 4
 
        
             
        
        
        
Answer:
13 textbook can buy.
Step-by-step explanation:
13 textbook can buy.
 
        
                    
             
        
        
        
Answer:
-26
Step-by-step explanation:
2 × 3 + 4 − 6^2
PEMDAS
exponents are first in this equation
2 × 3 + 4 − 36
Then multiply
6 +4 -36
Then add and subtract from left to right
10-36
-26
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
let <em>t = </em>total, <em>p = origional price.</em>
tax<em>= p(.09) </em>
t+tax= final price.