Answer:
Step-by-step explanation:

 
        
             
        
        
        
Step-by-step explanation:
S+T+U=180°{sum of angle of triangle}
- 68°+90°+U=180°
- U=180-158°
- U=22°
sin theta= p/h
sin22°=x/83
o.37=x/83
x=0.37×83
x=30.71
x=31
stay safe healthy and happy.
 
        
             
        
        
        
Answer:

Step-by-step explanation:

We'll combine the  and the
 and the  on the right side.
 on the right side.

Now, we'll subtract  from both sides.
 from both sides.

Divide both sides by  .
.

Ta-da!
 
        
                    
             
        
        
        
The answer to the first part is 172 plants per row with a remainder of 3 plants
The answer to the second part is, Martin knows that 7 goes into 700 100 times, 7 goes into 490 70 times, and 7 goes into 17 twice with a remainder of 3. He then adds 100 70 and 2 together to get 172 with a remainder of 3.