Answer
14 degrees
Step-by-step explanation:
 
        
             
        
        
        
Pi aka 3.14 is a very commonly know irrational number
        
                    
             
        
        
        
Answer:
$1.25 & $10.25
Step-by-step explanation:
Let c be the cost of renting one chair and t be the cost of renting table. We're given two equations:
#1. 5c + 3t = 37
#2. 2c + 6t =64
We have a system of equations. Using our system of equations calculator, we can solve this problem any of 3 ways below:
- Chairs (c) cost $1.25
- Tables (t) cost $10.25
 
        
             
        
        
        
1) 2a = 9b    ⇒ 2:9
2) a + b = 3b   ⇒   a = 2b   ⇒   1:2
Answers: 2:9  and  1:2