Answer:
The answer is 2.45
Step-by-step explanation:
I used this magic device called a calculator!
lol
 
        
                    
             
        
        
        
For this case, the first thing we must do is define variables.
 We have then:
 x: initial amount of cards
 We now write the equation that models the problem:

 
 Therefore, the initial amount of cards is 300
 Answer:
 Latoya had 300 cards at the beginning
 
        
                    
             
        
        
        
Answer:
w=67°
Step-by-step explanation:
First you solve for x. 12x+11=x. X would be 1. Then you plug in 1 for x and add the w to the equation. 12(1)+11+w=90. after solving that you will get the total for w. which should be 67°
 
        
                    
             
        
        
        
(-2-4y)(-8)
Use distributive property:
(-2*-8)+(-4y-8)
(remember that when 2 negative numbers are multiplied together it becomes positive.
16+32y
Hope this helps :)
        
                    
             
        
        
        
Answer:
D
Step-by-step explanation:
using the rule of exponents
•  =
 =  /
 /  , hence
, hence
 =
 =  /
 /  → D
 → D