To estimate, round 3102 to 3100
round 1-10 to 2500
1-70 to 2100 
1-80 to 2900
2900+2100+2500+3100=10600mi
Yes it is reasonable because you add and subtract numbers when estimating, however it is not exact
        
             
        
        
        
1. C. Rectangle 
2. F. 160
3. D. Triangular prism
4. H. 30 boxes
5. C. Equilateral Triangle
        
             
        
        
        
Answer:
P = 17
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
P = x + y
x = 11
y = 6
<u>Step 2: Evaluate</u>
- Substitute:                    P = 11 + 6
- Add:                              P = 17
And we have our final answer!
 
        
             
        
        
        
Benito drew a line with a slope of 3
 
        
                    
             
        
        
        
Answer:
2 2/5
Step-by-step explanation:
It is because the 2 wholes and 2/5