Is this a question? Or what is the question if you first said it?
        
             
        
        
        
Answer:
2.43
Step-by-step explanation:
1.80 x 0.35 + 1.80
 
        
             
        
        
        
Answer:
540 ft^2.
Step-by-step explanation:
The area of the trapezoid = h/2 (10 + 18) =  14h.
By Pythagoras the height h = √(5^2 - 4^2) = 3.
So the area of the 2 trapezoidal bases = 2 * 14*3
= 84 ft^2.
Now we calculate the area of the four lateral rectangular sides:
= 10*12 + 18*12 + 2*5*12
= 456 ft^2.
Total area =  456 + 54
= 540 ft^2.
 
        
             
        
        
        
9514 1404 393
Answer:
   5
Step-by-step explanation:
Let f represent the number of friends. Their total earnings are ...
   21f = 105
   f = 105/21 = 5 . . . . . divide by the coefficient of f
There are 5 friends in the group.
 
        
             
        
        
        
Answer:
9 unit
Step-by-step explanation:
after a translation the distance between the lines has no change.