Answer:
A) 15
Step-by-step explanation:
PEMDAS
20 / 4 + (6 * 2) - 2
take out the parenthesis which is P
20 / 4 + 12 - 2
there is no E
the go the rest of the way MDAS
5 + 12 - 2
17 - 2 
15
 
        
                    
             
        
        
        
Answer:
12 packages 2 books 5 crayons and 7 markers
 Step-by-step explanation:
 
        
             
        
        
        
Follow the "<em>y = mx + b</em>" formula, in which "m", stands for slope, and "b" stands for y-intercept
m = slope
m is located to the left attached to x.
-2 is in the place of m, therefore, -2 is the slope of the equation given.
-2 is your answer
hope this helps
 
        
                    
             
        
        
        
Answer:
<h2>10.7%</h2>
Step-by-step explanation:
Step one:
given
expected  weight= 28pounds
Actual weight= 25 pound
Required:
percent error

δ=	percent error
vA	=actual value observed
vE	=expected value
δ=25-28/28*100
δ=-3/28*100
δ=0.107*100
δ=10.7%
The percent error is 10.7%
 
        
             
        
        
        
Answer:
DE is parallel to AB, ∠ACB =∠DCE. So from symmetry of triangle. Δ DCE and Δ ABC are symmetric