I believe the answer would be 13.75 but i’m not completely sure on this so correct me if i’m wrong
        
             
        
        
        
Answer:
The horizontal value in a pair of coordinates: how far along the point is. The X Coordinate is always written first in an ordered pair of coordinates (x,y), such as (12,5). In this example, the value "12" is the X Coordinate. Also called "Abscissa"
Step-by-step explanation:
 
        
             
        
        
        
It typically just needs two parts
1) all parties must be in agreement
2) something of value needs to be exchanged. ie. money, a service
        
             
        
        
        
Answer:Sorry but none where c there e but no c .
But it would be 16c +2f +13 .
Step-by-step explanation:you need to combine like terms 
which are 13c +3c =16c and 9f- 7f=2f and 15-2 =13 .
Hope it helps .
 
        
             
        
        
        
To add or subtract with powers, both the variables and the exponents of the variables must be the same. You perform the required operations on the coefficients, leaving the variable and exponent as they are.