The ratio is 4:5
so girls=4x
and boys=5x
(because you don't know how many boys or girls there are)
then the equation would be
4x+5x=18
9x=18
so x=2
 then 2 times 4 which equals 8
and 2 times 5 which equals 10
so there are 8 girls and 10 boys
        
             
        
        
        
Remember 800 because that’s your big number / most important.
So they’re open from 8am - 10pm. They’re open for 14 hours a day and they sell 16 rolls per hour.
If one hour is 16 rolls sold , then what is 14?
16 x 14 hours (16 x 14 = 224)
In a whole day they sell 224 rolls.
Monday: 800 rolls - 224 rolls = 576 rolls
Tuesday: 576 rolls - 224 rolls = 352 rolls
Wednesday: 352 rolls - 224 rolls = 128
By Thursday they won’t be able to sell more than 224 because there is only 128 rolls left that will be sold out in 8 hours on that day.
So they will be sold out completely by THURSDAY. 
The best time to go to the store is most likely on a Tuesday around 12-1pm
        
             
        
        
        
Answer:2.35294117647 or 2.3
Just do 40/17 
 
        
             
        
        
        
y = 1/3x +b
1 = 1/3(9) +b
1 = 3 +b
subtract 3 from both sides
-2 = b
<h2>
y = 1/3x - 2</h2>
 
        
             
        
        
        
For this case we can have the following function:
 r = f (t)
 Where,
 Independent variable is t.
 Dependent variable is r.
 To find the inverse we solve for the independent variable, that is, the data entry variable.
 Answer:
 FALSE
 option B