Well the first three is in this place value _ - _ _ where the dash is i that is hundred second one is tens
        
             
        
        
        
10 small boxes and 11 large boxes were shipped.
Step-by-step explanation:
Given, 
Total boxes shipped = 21
Total volume of shipped boxes = 342 cubic feet
Volume of each small box = 10 cubic feet
Volume of each large box = 22 cubic feet 
Let, 
Number of small boxes = x
Number of large boxes = y 
According to given statement; 
x+y=21     Eqn 1
10x+22y=342    Eqn 2
Multiplying Eqn 1 by 10 

Subtracting Eqn 3 from Eqn 2

Dividing both sides by 12

Putting y=11 in Eqn 1

10 small boxes and 11 large boxes were shipped.
Keywords: linear equation, subtraction
Learn more about linear equations at:
#LearnwithBrainly
 
        
             
        
        
        
Answer: Step-by-step explanation:
if I am correct.. Katie is gonna be paying $77.76. Meanwhile, Mike and Ryan are paying $38.88
half of 155.52 = 77.76
half of 77.76 = 38.88
$77.76 + $33.88 + $38.88 = $155.52
 
        
             
        
        
        
You have to keep order of operations in mind.
1. Take care of the parentheses; distribute.
-3+6x-3=-20-8x
Simplified: 6x-6=-20-8x
2. Isolate the x variable.
Add 8x to both sides and add 6 to both sides. 
14x=-14
3. Solve for x.
Divide by 14 on both sides.
x=-1
        
             
        
        
        
Answer:
x-5=-3
Step-by-step explanation:
|x-5|+2=5
|x-5|=5-2
|x-5|=3
x-5=±3
so x-5=-3 is a correct step.