The answer is 246 units²
<span>Surface area= 2(lw + lh + wh)</span>
        
                    
             
        
        
        
Answer:
y+7 = -3 ( x-4)
Step-by-step explanation:
First find two points on the graph to find the slope
( 1,2) and ( 3,-4)
The slope is given by
m = ( y2-y1)/(x2-x1)
m = ( -4-2)/(3-1)
     = -6/2
     =-3
We can use the point slope form
y - y1 = m(x-x1)  where m is the slope and x1,y1 is a point on the line
We have two choices with a slope of -3
We can either use and x coordinate of -2 or 4
for  -2, the y coordinate is not shown
for 4 , the y coordinate is -7
Using ( 4, -7) and m = -3
y--7 = -3( x- 4)
y+7 = -3 ( x-4)
 
        
                    
             
        
        
        
Answer: The required expression will be 

Step-by-step explanation:
Since we have given that 
Amount that Liam has = $250
Amount that he and his classmates spent on  present for their teacher =$p
Number of students in which $p will split = 24
According to question,
Amount that left to Liam is given by

Hence, the required expression will be 

 
        
                    
             
        
        
        
Answer:
0.1*√20000 = 14.1421356237
-0.05*√28800 = -8.48528137424
Step-by-step explanation: