Hello from MrBillDoesMath!
Answer:
sv = tu
Discussion:
For the case of a proportion the "cross product" refers to the products of the "extremes" equaling the products of the "means".  As (s,v) are the extremes and (u.t) the means, this gives sv = tu
  
Thank you,
MrB
 
        
             
        
        
        
Okay so first,
Confirm: Every time we have 7 large sugar skulls, that also makes 5 large sugar skulls. So if you have 132 <u>ALTOGETHER</u>, then you'd need to do some multiplication/division. First, divide 132 by 5, that equals 26 small sugar skulls. Lastly, 132 ÷ 7 = 18 large sugar skulls. So there are 26 small sugar skulls and 18 large sugar skulls.
(I hope that was right, I tried my best :)
 
        
             
        
        
        
Answer:
Step-by-step explanation:
hello : 
let: A = 3√16+√-9
16=4²   and  -9 = 9i² =(3i)²   .... ( i² = -1)
√16 =√4² = 4     and  √-9 = √9i²= √(3i)² ± 3i
A= 12  ± 3i
 
        
             
        
        
        
Hey!
How are you?? I'd love to assist you today :)
First, remove the parentheses. 
Now you have <em>A/B + C/D</em> 
Now, rewrite the expression with a common denominator.
AD + CB / BD
That would be the official answer to the question. Make sure to ask any questions.
 
        
             
        
        
        

 + 474 equals 
483.
First, multiply 3 two (3x3) times to get 9. Your problem should look like: 9 + 474.
Second, add 9 + 474 to get 483, which is the correct answer.