Use an app called Socratic, take a photo of the questions you're stuck on, then it will help you in stages and show you the answer.
 
        
             
        
        
        
Answer:
MTD = 75
Step-by-step explanation:
RTD + RTM + MTD = 180
      65 + 40 + MTD = 180
             105 + MTD = 180
Subtract 105 from both sides.
                       MTD = 75
Don't forget to mark me brainliest : )
 
        
             
        
        
        
Answer:
Step-by-step explanation:
 
        
                    
             
        
        
        
X+y=38 that’s your answer
        
             
        
        
        
Answer: The third and fourth problem are linear
Step-by-step explanation:
3rd problem follows a pattern
X  6  5   4  3
Y 21 15 10 6
6x3+3=21
5x3=15
4x2+2=10
3x2=6
Problem 4 follows a pattern as well
X value goes up 1, Y value goes up 4