Answer:
I think it is C 8,-4
Step-by-step explanation:
I think
 
        
             
        
        
        
Answer:
Peyton: 6 years old
Matt: 24 years old 
Justin: 9 years old
Step-by-step explanation:
P= Peyton   M= Matt   J= Justin
P=J-3
M=4P
J+P+M=39
4J-12=M  4J-12=39-J-P
5J-51=-P    P=J-3
5J-51=-J+3    J=9
P=9-3  P=6
M=4(6)  M=24
 
        
             
        
        
        
Answer:
C - 10
Step-by-step explanation:
n is the number of the term
an = -2n+8
a9 = -2*9 +8
a9 = -18+8
a9 = -10
The 9th term is -10
 
        
             
        
        
        
1/2= /360 is the correct answer choice
        
                    
             
        
        
        
Answer: E. 1200
Step-by-step explanation:
Given : A certain restaurant offers 8 different salads, 5 different main courses, 6 different desserts. 
i.e. No. of choices for different salads= 8  -----(1)
No. of choices for different main courses = 5  ----(2)
No. of choices for different desserts = 6
When we choose two different desserts then we use permutation(repeatition not allowed) :
 ----(3)
----(3)
[∵ No. of ways to choose r things out of n = ]
 ]
If customers choose one salad, one main course and two different desserts for their meal , then By Fundamental principle of counting (Multiply (1) , (2) and (3)), the number of  different meals are possible :-

Hence, the correct answer is E. 1200 .