It takes you 45 minutes to clean the fish tank and it takes your sister 30 minutes. how long does it take the two of you working together to clean the fish tank
Answer: 
My 1 minute work =
My sisters 1 minute work =
My and My sister's 1 minute work =
                                                         =
                                                         =
 Me and My sister will finish the work in
 Me and My sister will finish the work in  minutes
 minutes
 
        
             
        
        
        
F(x)=x^2+x+5  
then  
F(3) would be the function evaluated at x=3, or 17. 
anytime you see F(3) it is just whatever formula you are looking at evaluated when the variable is equal to 3. 
 
        
             
        
        
        
Answer:
32
Step-by-step explanation:
25% is the same as 1/4
8 times 4 is 32 so 8 is 25% of 32
 
        
                    
             
        
        
        
Answer:
Not really 100% sure how to answer this, but if you would like to find the price of any item 10% off, you would just multiply the price by 0.9
EX: item cost $100
$100 x 0.9 = $90
Meaning the price of the item after the discount is applied would be $90 
 
        
             
        
        
        
Answer: $0.66
Step-by-step explanation: Just divide 3 / $1.98 and you will get $0.66.
Fairly simple, But the only thing I don't understand is why a melon is on sale for $0.66. Thats CHEAP! Give me 100 :)