Three times the difference of a number and four.
                                          or 
Three times the quantity of four less than a number n.
        
             
        
        
        
3-7 is -4 so it becomes -4x=4 divide both sides by 4 to get -x=-1 a lot of teachers dont like that negative x so you can also divide by -1 again to make it x=1 
hope it helps
        
             
        
        
        
<h3>
Answer:   11 cans</h3>
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Explanation:
SA = surface area of the sphere
SA = 4*pi*r^2
SA = 4*pi*8^2
SA = 804.247719
The surface area is roughly 804.247719 sq ft.
I used the calculator's stored version of pi to get the most accuracy possible.
Since 1 paint can covers 75 sq ft, divide that surface area over 75 to find out how many cans you need.
804.247719/75 = 10.72330292
Round up to the nearest integer to get 11
You'll have leftover paint, but it's better to go over the goal than come up short.
 
        
        
        
Answer:
8,500
Step-by-step explanation:
if a number has 4 or less, round lower. 
if a number has 5 or more, round up. 
 
        
             
        
        
        
12×50=600
12×49=588
600-12=588