Answer:
20 students
Step-by-step explanation:
Weight lifting:
8% = 0.08
250(0.08) = 20
 
        
             
        
        
        
The first one (2-x^3) is the correct one
 
        
             
        
        
        
The yield per acre will be given by:
[total amount of bushels sold]/[area of the field]
Total amount sold=64100+8120=72220
area=488 acres
thus
72220/488
=147.992~148 bushels per acre
        
                    
             
        
        
        
Answer:
see below
Step-by-step explanation:
1.
m = (y2-y1)/(x2-x1)
     = (90-80)/(0-1)
      = 10/-1
    =-10
The slope is -10 ft/s
This means the height decreases 10 ft for every second that passes
This is not proportional because it has to go through the point (0,0)
4.
m = (y2-y1)/(x2-x1)
     = (1000-0)/(3-0)
      = 1000/3
    =1000/3
The slope is $1000/3
This means the 1000 dollars is sold every 3 days
This is proportional because it goes through the point (0,0) and has a constant slope