Answer: A
Step-by-step explanation:
The maximum amount of weight the truck can carry is 1600lbs. You do not want to exceed 1600lbs, but you can reach 1600lbs. This makes the inequality symbol ≤. This symbol says that the weight load has to be less than 1600lbs, but It can equal 1600lbs. You know that the piano is 400lbs and each box is 50lbs. Since you want to figure out how many boxes you can put on the truck alongside the piano, you can use the inequality: 50x + 400 ≤ 1600. 
50 represents pounds per/box
x represents the number of boxes you can hold
400 represents the weight of the piano
1600 represents the max weight.
 
        
             
        
        
        
Answer:
5
Step-by-step explanation:
Replace 20 instead of m
20/4=5
 
        
                    
             
        
        
        
Answer:
63°
Step-by-step explanation:
First, by looking at the angle we see that the overall angle is a right angle. This means that the total will add up to 90°.
Knowing this we can then subtract 
90° - 27° = 63°
 
        
                    
             
        
        
        
Answer:
Area = Length x width
Step-by-step explanation:
Area= 2
 
        
             
        
        
        
Answer:
i tihnk it is = − 4 im sorry if it is wrong
Step-by-step explanation: