First you must remember that: An isosceles triangle consists of a vertex angle and 2 CONGRUENT base angles. 
subtract 180-24
156/2
=78
CHECK:
25+78+78=180
        
             
        
        
        
Answer:
x=3
Step-by-step explanation:
Simplify 3(x-2)+5X
= 8x-6=18
Add 6 to both sides 
8x=24
Divide by 8
x=3
 
        
             
        
        
        
14 plants divided by 4 gallons equals 3.5 plants per every 1 gallon. 35 divided by 3.5 equals 10 gallons.
        
                    
             
        
        
        
Step-by-step explanation:
ask for what, if you need help you 
 
        
                    
             
        
        
        
1834 bfc I believe that’s the right answer