77 days turned into weeks means that you have to divide by seven.
77/7 = 11.
It took eleven weeks to plan (Answer choice D)
        
                    
             
        
        
        
So there's 30 people or slots. The odds that Fatheya will be chosen to perform first is 1/30. But now there's one less slot. 
Now with Fatema, there's 29 slots, so there's a 1/29 chance. Then combine these values by multiplying them:
1/30 * 1/29 = <em>1/870</em>
All done!
 
        
             
        
        
        
Answer:
The answer is 6ab³c(3ab + 4c)
Step-by-step explanation:
You have to collect the like-term :
18a²b⁴c + 24ab³c²
= 6(3a²b⁴c + 4ab³c²)
= 6a(3ab⁴c + 4b³c²)
= 6ab³(3abc + 4c²)
= 6ab³c(3ab + 4c)
 
        
             
        
        
        
Answer:
63/16 or 3 15/16.
Step-by-step explanation:
Solve: 3/8[-8 + 16 - (-2 and 1/2)]  Using order of operations (PEMDAS):
=3/8[-8 + 16 - (-2.5)]
= 3/8( 8 + 2.5)
= 3/8(10.5)
= 31.5/8
= 63/16.